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Describing habitat and finding colour rings of Black-tailed

Godwits (Limosa limosa) in the Casamance, Senegal, from

27 August – 6 September 2018

Expedition report, University of Groningen & Global Flyway Network, The Netherlands

September 2018

Jos Hooijmeijer, Ruth Howison, Idrissa Ndiaye & Theunis Piersma

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Introduction The Black-tailed Godwit (Limosa limosa; BTG) is a meadow bird (Verstrael 1987; Thijse 1904). The current Dutch population is estimated at fewer than 40.000 breeding pairs (Kentie et al. 2016) and represents an important part of the total continental BTG population Limosa limosa limosa. However, the number of breeding pairs have declined rapidly over the last decades, as compared to the 120.000 pairs in the 1960s (Mulder 1972). This is mainly caused by a change in agricultural land use. Intensification and rationalisation have led to degradation of the breeding habitat, resulting in low reproduction. The population in the Netherlands cannot produce enough chicks for a stable population. (Vickery et al. 2001; Newton 2004; Tscharnke et al. 2005; Teunissen & Soldaat 2006; Roodbergen et al. 2012). After the breeding season godwits migrate to southern Europe (Spain and Portugal) and West-Africa where they stay for wintering (Márquez-Ferrando et al. 2009; Hooijmeijer et al. 2013). Demographic research Southwest Friesland To measure the changes in population numbers and the causes, in 2004 the University of Groningen started a long-term research in the south-western part of Friesland, The Netherlands. In 2007 the research area has expanded up to 8400 hectares and since 2012 it increased again with another 1600 hectares (Groen et al. 2012). A colour-marked population of godwits was set up to make them individually recognizable. The knowledge that has been collected with this research has been implemented by policy makers and nature conservation organisations. Migration and wintering sites Black-tailed Godwit In 1983-1984 the wintering sites of godwits were explored for the first time. At that moment most godwits were wintering in rice areas along the West-African coast in Senegal, Gambia, Guinea-Bissau and further. Big numbers of godwits also occurred in the inner Niger delta in Mali (Altenburg & van der Kamp 1985), but they probably belonged to the eastern European population. Recently, the wintering behaviour has partly changed with an increasing number of godwits deciding to winter in southern Spain at National Park Doñana. In the 1980s during the first counts, only 4% of the NW-European population used this area as a wintering site but recent estimations suggest a big change with up to 23% of the population wintering in Spain. The most important reason for this is probably the creation of new artificial fishponds and rice fields. It is remarkable that this increase is not driven by climatic changes in the Sahel zone of West-Africa (Márquez-Ferrando et al. 2013). For godwits, staying Iberia can be advantageous because they can skip a 3000 kilometre (v.v.) travel over the Sahara, a potentially dangerous migration route and save their fat stores for the next breeding season.

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Figure 1. Two migration routes of satellite tagged birds in 2009. The left map shows the route of an Iberian wintering bird.

On the right an African wintering bird. Iberian wintering birds save a 6000 km flight and don’t need to cross the Sahara

twice (Hooijmeijer et al., 2013)..

Conservation The change in wintering grounds is remarkable and an important reason why we want to do (demographic) research in West-Africa. We know now that juveniles are more likely to make these kind of shifts than adults (Verhoeven et al., 2017), but not how they develop their individual migration strategy and perhaps thereby change the migration pattern of the species. These changes can also have consequences for the survival rate of both adults and juveniles. Moreover, they can lead to differences in reproductive success, for example due to differences in body condition upon arrival on the breeding grounds. Both are demographic parameters that can rapidly influence population dynamics. A better understanding of these processes is therefore also important from a conservation point of view; the Black-tailed Godwit qualifies since 2006 as “Near Threatened” on the IUCN Red List. Until now, West-Africa is the only area along the migratory flyway from where we don’t receive many observations of colour-marked individuals. Only small numbers of colour-ringed birds have been reported, mainly by birdwatchers and, recently, by local scientists. Unfortunately the numbers of sightings are too small to make demographic comparisons between wintering sites. Expeditions West-Africa and Iberia In November 2014 the University of Groningen, in cooperation with Global Flyway Network and financially supported by Birdlife Netherlands, embarked upon their first expedition to the wintering grounds in West-Africa and since then we visited the area 2-3 times per year. We aim to set up a demographic research project in this area in close cooperation with local scientists, volunteers and conservation organisations. The most important goal of the first missions was to get a good overview of the wintering grounds, resighting conditions, local facilities and knowledge and to make a start with setting up a dataset of individually recognizable godwits that winter in West-Africa. Secondly we made a pilot study of habitat choice and prey choice. At this moment comparable research is done in NP Doñana (Spain), Extremadura (Spain) and the Tejo/Sado estuaries near Lisbon (Portugal). The last two are used as stop-over sites in February. Therefore it is mandatory to continue our

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research at all these locations to find links between wintering sites, stop-over sites and breeding sites. Research questions we want to get into in the future with our work in West-Africa, Spain, Portugal and the Netherlands are:

What is the overall difference in adult mortality between birds wintering in West-Africa and Iberia? And where along the flyway do these differences occur?

Can birds change their wintering strategy during their life? And is this age-dependent?

Does reproductive success determine where birds winter?

Has the wintering strategy consequences for their migration and breeding phenology? And are there consequences for their reproductive success?

Habitat study Anthropogenic alteration of natural wetlands is having a major impact worldwide with consequences (both negative and positive) for migratory species such as continental black-tailed godwits. The majority of continental black-tailed godwits breed in grassland meadows situated in north-west and Eastern Europe (March – July) after which they migrate southwards for the non-breeding period (mid July – February), finding forage resources within wetlands and agricultural rice fields. On their migratory route black-tailed godwits pass through France and either stage or spend the non-breeding period in southern Spain and Portugal. Many will make the Saharan crossing to overwintering sites in West Africa, namely; the Senegal Delta and coastal region of Senegal, The Gambia, Guinea-Bissau, Guinea, Sierra Leone and central Mali. Concentrating our efforts in Senegal, we used remote sensing products (Modis EVI 16 day time series) and 3.5 years of good quality locations of black-tailed godwits (equipped with PTT satellite tags) to generate a spatially and temporally explicit habitat prediction model using MaxEnt modelling. We found that during the non-breeding period black-tailed godwits show a preference for stable habitats within a relatively low productivity range (EVI value 0.1-0.2), which are associated with open wetlands, low vegetation cover and shallow surface water. However, remote sensing data is difficult to interpret without accurate ground-truthing information. Additionally, godwits spend much of their time foraging either on the mudflats of saline mangrove wetlands or in wet rice fields, however little is known of the nature of the prey items at different times of the year. In this study we aimed to conduct a survey categorizing and describing habitats, measuring environmental variables such as water salinity and soil penetration pressure, feeding efficiency of the godwits and carefully searching the substrate to establish the identity of godwit prey items. Between 27 August and 6 September 2018 we visited the most import areas in the Casamance in South Senegal to record resightings of individual birds and describe godwit habitat. In this report we present a daily overview of our findings with photos, locations we visited, numbers present and the first conclusions and recommendations.

Literature

Groen, N.M., Kentie, R., Goeij, P. de, Verheijen, B., Hooijmeijer, J.C.E.W., Piersma, T.. 2012. A modern landscape ecology of black-tailed godwits: habitat selection in Southwest Friesland, The Netherlands. Ardea 100:19-28.

Hooijmeijer, J. C. E. W., Senner, N. R., Tibbitts, T. L., Gill, R. E. Jr, Douglas, D. C., Bruinzeel, L. W., Piersma, T.. 2013. Post- breeding migration of Dutch- breeding black- tailed godwits: Timing, routes, use of stopovers, and nonbreeding destinations. Ardea, 101, 141–152.

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Kentie, R., Senner, N. R., Hooijmeijer, J. C. E. W., Márquez-Ferrando, R., Masero, J. A., Verhoeven, M. A., Piersma, T.. 2016. Estimating the size of the Dutch breeding population of Continental Black- tailed Godwits from 2007–2015 using resighting data from spring staging sites. Ardea, 104, 213–225. https://doi.org/10.5253/arde.v104i3.a7

Márquez-Ferrando, R. Hooijmeijer, J. Groen, N. Piersma, T. Figuerola, J.. 2011. Could Doñana,

SW Spain, be an important wintering area for continental Black-tailed Godwits Limosa

limosa limosa? Wader Study Group Bulletin 118: 82-86.

Mulder, T. De Grutto in Nederland. 1972. Wetenschappelijke mededelingen van de Koninklijke Nederlandse Natuurhistorische Vereniging. Nr.90. Hoogwoud: KNNV.

Newton, I. 2004. The recent declines of farmland bird populations in Britain: an appraisal of causal factors and conservation actions. Ibis 146: 579-600.

Roodbergen, M., van der Werf, B. & Hötker, H. 2012. Revealing the contributions of reproduction

and survival to the Europe-wide decline in meadow birds: review and meta-analysis.

Journal of Ornithology 153: 53-74.

Teunissen, W., Schotman., A., Bruinzeel, L.W., Holt, H. ten., Oosterveld, E., Sierdsma, H., Wymenga, E., Melman, D.,. 2012. Op naar kerngebieden voor weidevogels in Nederland. Feanwâlden: Sovon-rapport 2012/21, A&W rapport-1799, Alterra-rapport 2344.

Teunissen, W. & Soldaat, L.. 2006. Recente aantalsontwikkeling van weidevogels in Nederland. De

Levende Natuur 107: 70-74.

Thijsse, J.P.. 1904. Het Vogeljaar, Nederlandse vogels in hun leven geschetst. Amsterdam:

W. Versluys.

Thorup, O.. 2006. Breeding waders in Europe2000. International Wader Study Group 14.

Tscharntke T., Klein A. M., Kruess A., Steffan-Dewenter I., &Thies C.. 2005. Landscape perspectives on agricultural intensification and biodiversity - ecosystem service management. Ecology Letters 8: 857-874.

Verhoeven, M.A., Loonstra, A.H.J., Hooijmeijer, J.C.E.W., Masero, J.A., Piersma, T., Senner, N.R. 2018. Generational shift in spring staging site use by a long-distance migratory bird. Biology letters 14(2): 20170663.

Verstrael, T.J.. 1987. Weidevogelonderzoek in Nederland. 's-Gravenhage: Contactcommissie Weidevogelonderzoek.

Vickery, J.A., Tallowin, J.R., Feber, R.E., Asteraki E.J., Atkinson, P.W., Fuller, R.J., Brown, V.K. 2001. The management of lowland neutral grasslands in Britian: effects of agricultural practices on birds and their food resources. J. Appl. Ecol.: 38: 647-664.

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Daily reports

Map of the areas visited during the expedition, and showing the location of the famous Amalia! 29 August 2018 Today we travelled from The Netherlands to Senegal. We spent the night at hotel Begue Pokai in Toubab Dialaw at 40 min drive from the fancy new airport. Our guide Idrissa Ndiaye was already in the Casamance for 3 days to explore good sites for us to visit. 30 August 2018 An early start we left Dakar at 06h30, caught a flight to Ziguinchor at 09h00. Idrissa and driver Marcel were there to greet us. We headed straight to the field despite the pouring rain. We skipped the Colobane rice fields because of heavy rains. We continued along the road to Cap Skirring and found 190 godwits at the Niambalang mudflats east of Oussouye and managed to read 9 ring combinations. Godwits were roosting on the mudflats and foraging in the mud of a flooded and ploughed rice field. The field did not contain any rice seedlings only mud walls and raised mud in rows for where the rice would soon be planted. The rain ensured that the water was about 30cm deep. Probing holes created by the foraging godwits could clearly be seen, with the highest intensity in the mud closest to the water. The penetrometer set up on the softest possible measure barely registered any resistance. The water in 3 different paddies had an exceptionally high pH around 9.5 and 10, salinity was very low 500 – 800 µS, and soil moisture was high 37 – 45% volume, measured with the Thetaprobe. We collected some mud samples with the 100 cm3 pf ring for further chemical and nutrient measures. We also captured 14 new survey sites by identifying the land use, and capturing representative photos of the area. We continued along this road and took the turnoff to Miomp where one of the transmitter birds had been located. Due to the bad condition of the road we could not get close enough to the exact site and decided to continue to the Cabrousse rice fields. Maintenance of the dikes, ploughing and

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planting were in full swing and a lot of people were working in the field. No godwits were found here and they were not seen recently either. It kept on raining (>70 mm today!) and on the way back to Bignona we stopped at the Colobane rice fields. But it was already getting too dark and most birds had probably already left to the roost. We only read 1 codeflag.

View from the plane of the rice fields adjacent to Ziguinchor, it’s the rainy season! The soil is waterlogged and the rice paddies are filled with water.

Godwits foraging on earthworms on the ploughed rice paddies.

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31 August 2018 The day started dry but as soon as we had reached the Baila mudflats it had started raining again. We scanned the mudflats but found no birds; perhaps the water level was too high for them to forage? We continued to the Dianki rice fields. On the way there we passed through several smaller rice field complexes but no godwits were encountered. In Dianki we spent the rest of the day scanning every corner of the rice fields but found no more than 100 individuals. A lot of people were in the field preparing the paddies or planting the rice. Almost all birds that we found, were foraging in recently ploughed parcels. We took several soil samples but did not find any obvious prey items. From the probing holes we could see that they were searching for food in the flanks of the small dikes, perhaps looking for spilled grains from the previous harvest that become available in the mud from the paddies that is used to reinforce the dikes? We also found 3 cm long earthworms in the fresh dikes; that could also be what they are looking for. Regarding colour rings we did not have a very fruitful day. We checked at least 86 individuals but found only 1 bird of our scheme and 2 of the Spanish scheme. In the Dianki rice field complex there is a huge dike, installed by international funding. The dike separates the rice paddies from a mangrove wetland. The recent heavy rains have filled all the existing rice paddies and the large water buffer area. The sluice gate in the dike was open allowing the excess rainwater to flow from the water buffer area into the mangrove wetland. Salinity measured in the water buffer areas and rice paddies in preparation for planting was really low 20 – 200 µS, in the mangrove wetland it was higher around 3.4 mS. The highest salinity was encountered in the abandoned salinized rice on the outside of the big dike 6.9 mS. pH in the different habitats ranged from 9.5 to 6.0 and the heavily flooded soils were soft measuring between 0.1 to 8.2 on the lowest combination of spring and cone. We collected a further 16 habitat description points noting the current season differences from our previous visit in Nov/Dec 2016.

Dianki rice fields water buffer area, filled with water and reeds. 01 September 2018 Good dry weather initially with no cloud cover, but later around 12 pm reached 100% cloud cover. A cool coastal breeze kept the temperature low, ~25 oC. A long walk today through the rice fields of Fintiok, Koubanao and Hatioune and adjacent mangrove wetlands, however quite informative in

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terms of godwit foraging behaviour. We observed a group of godwits foraging both in the rice paddies, those which had been used as seedling nurseries – freshly harvested for replanting, and those that were ploughed and ready for planting, as well as in the extremely salty mangrove wetland adjacent to the rice fields (about 160 birds). The heavy rains ensured that all rice paddies and abandoned paddies were filled with fresh rainwater between 20 and 50 cm deep. Tussocks of grass were placed on the existing paddy walls for additional strengthening. These will dry later in the year and form part of the paddy wall maintenance. However at this moment these overturned tussocks were extremely interesting to godwits who were actively probing into these upside down tussocks, both the exposed tussocks and as far as we know the tussocks that were under the water. We carefully investigated a few of these paddies that were used for foraging and found many ~3cm red earthworms. The feeding efficiency showed quite a high success rate of between 18 and 25 food items per minute. Salinity measured in the fresh water rice paddies was really low at 440 µS, and penetration pressure was almost zero in the water logged clay. In the adjacent mangrove wetland we measured hyper saline conditions of 44.3 mS, as well as penetration pressure of almost zero. The godwits were mainly foraging in shallow pools of ~15cm deep, or in shallow creeks. Feeding efficiency was quite high between 18 and 33 prey items per minute. We investigated the mud where they had been foraging and managed to find only one chironomid. We sampled the general area twice and sieved out the sample in the pools of water but were unable to find any more chironomids nor any other suitable candidate food items. This was strange given the high intake rates of the godwits. Nonetheless we took a full set of environmental measures and a representative soil sample in both the rice paddies and the mangrove wetland. We added a further 11 sites to our habitat description sample set. Many people were working in the rice fields like in the fields we visited the previous days. Fintiok and also Koubanao still have the most well maintained fields; in Hatioune >75% had been abandoned and the dikes were not well maintained. We heard many times from local farmers that godwits come to the rice fields mainly in the early morning to forage. Later when the fields become full of people, most of them seem to move to the mangrove wetlands (tannes). Here they continue foraging or spend time roosting. We also heard from many farmers that the godwits caused serious damage by trampling the freshly planted seedlings. We did not see any birds in these kind of fields however. In total we saw about 200 individuals between 10:00 and 18:30; 75 in the rice fields and the rest in the tannes. It was a productive day colour-ringwise: we read 9 combinations, 7 were from our own scheme. 4 of them had been seen here in previous years.

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At the edge of the mangrove wetland and Fintiok rice paddies looking towards the approaching storm. 02 September 2018 The day started with an hour long rain shower, but by the time we were ready to head into the field the rain had stopped. Cloud cover was between 80 – 100% the rest of the day. The air temperature ranged from about 25 – 30oC. We met with some local master students from the university in Dakar that are doing a master on herons, Pape Cissao and Maryam, and together we explored the shores of the mangrove wetland near Tobor. We found several groups of godwits adding up to about 250 individuals and most of them were actively foraging in shallow water. Ideal situation for reading colour rings but unfortunately the ring density was low with only 2 birds from our own scheme. This time plenty of success in sampling the mud for prey items. The mud was filled with chironomids which was also shown by the high intake rates of 30 – 44 prey items per minute. Salinity measured 11.5 mS and penetration pressure was higher than yesterday’s measures ranging between 3 and 6, in the thick compacted clay. Abandoned rice fields flanked the mangrove wetland, they looked like they have not been active for years as they were fully invaded by local wetland reed species. After lunch we explored the Colobane rice fields next to Ziguinchor, there were about 600 godwits in different groups that mixed and split up again. The birds were very relaxed around people and could be approached up to 40 meters. That was necessary if you wanted to read the colour rings because they were extremely stained and covered with a film of clay that made the rings almost impossible to read from a distance; we had experienced that in previous years at this site as well. Nevertheless we ended the afternoon with 27 resightings including many from other schemes and even a Finnish bird. Similar to yesterday the godwits were found in a recently ploughed rice field ready for planting. The water was deep ~50cm however the godwits were perched on the mud ridges probing for food items in the overturned grass and rice tussocks. Salinity was very low at 408 µS and penetration pressure was zero in the water logged clay of the mud ridges. We sampled the mud that was actively probed by the godwits 3 times with a sieve however, were unsuccessful in obtaining any suitable prey items from the mud. Again, a bit strange as the godwits who were actively foraging were finding between 16 and 32 prey items per minute. We asked one of the ladies who was planting rice seedlings in one of the fields if she had seen many worms while they were ploughing, she said a few weeks back when there was less water in the paddies the fields were full of worms.

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The shores of the mangrove wetland at Tobor. 03 September 2018 Another rainy start to the day, but after about an hour downpour the rain eased up. Cloud cover ranged from 90 -100%, and there were a few showers of rain on and off the whole day. The temperature ranged from 25 – 30 oC. We headed North East to a small protected area, Roneraie de Diognere which is situated in a bend of the Soungrougrou tributary of the Casamance River. A German transmitter bird called Melto, had been spending time in a large shallow wetland central to the protected area. We first had to cross the Soungrougrou River via ferry which took some time. We navigated to the nearest village – to the protected area - to ask the Chief permission to visit the area. They very enthusiastically received us and were very curious about our work. The Chief’s son joined us to help us navigate along the correct tracks to the edge of the river. From here we walked along the river bank until we reached the protected area. The Chief’s son was impressed about the walking conditions, the waterlogged clay was a bit slippery and he apparently doesn’t get to walk in these conditions very often. We passed by some rice fields adjacent to the lake, the women recognized the chiefs son and were animatedly surprised to see him. He was curious about our work though and asked many questions. We reached the very salty shallow lake but unfortunately did not have enough time to fully explore the whole area which would have taken more than a full day. Nonetheless we took some environmental measures as this was a rare opportunity to describe a remote environment visited by a satellite tagged godwit. The lake water was hyper saline at 52.7 mS and a soil penetration pressure ranging from 6.8 to 7.4. After this the Chief’s son could not bear to walk back along the muddy shore and suggested we take a “short cut” back to the track through the rice fields. This proved to be quite amusing as he was not sure of the way and had to ask the ladies working in the fields for direction because he had to admit that he had not been there for 20 years (the ladies were delighted). We were treated to a view of a large flock of flying pelicans, and ultimately we were successful in finding Marcel driving along the track back to the village. The making for the story of the year, we think, paying a relatively random visit to this remote village of very friendly people. On the way back to the ferry we stopped shortly to explore the shores of the Soungrougou River, but alas still no godwits. We added 12 sites to our wetlands habitat descriptions.

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The saline shallow lake within the Roneraie de Diognere protected area. 04 September 2018 Our last full field day, started off dry and cloudy 80-100% clouds. Rain showers occurred intermittently throughout the day, and the temperature was quite a bit higher than our previous days ranging from 30 – 35 oC. We explored Djifangor mudflats near Niaguis, a small mangrove protected area east of Ziguinchor. An amazing place with a great diversity of bird species including a super rare sighting of an African Skimmer and 2 Whitebacked Nightherons. A group of 86 godwits were present foraging in the shallow water so we took some environmental measures and a colour ring density sample. Salinity was quite high at 37 mS, and soil penetrability relatively low between 1.4 and 2. This was followed by an exploration of a rice complex near Agnack on the outskirts of Ziguinchor, salinity was really low 215 µS and soil penetration pressure was zero in the waterlogged mud. We found a large group of at least 200 godwits resting and preening in a ploughed rice field, a second smaller group were foraging. In this group we found 6 individuals of our own scheme. Like in most rice fields, the birds were extremely easy to approach up to 50 m. We investigated the mud in their rice paddy really well to try to determine what the godwits were eating. At first it looked like it would be unsuccessful, but then after carefully breaking apart a clump of mud around a godwit probing hole we noticed really tiny earthworms ~0.5mm in diameter and about 3 cm long. These tiny earthworms were so delicate that they easily disintegrated when we tried to collect them. Sieving didn’t yield anything as they were completely destroyed in the sieving process. So it seems earthworms are the key to the rice fields story at this time of the year. We revisited Niambalang mudflats and found a flock of 500-600 godwits foraging in shallow water of the salty mangrove wetland just next to the road: easy peasy ringreading and in no time we had another 6 ring combinations. Birds were already moving out probably due to the incoming flood. Some of them were found back in a 2 hectare island in the middle of the mudflat a little further down the road, where someone apparently desperately tried to maintain some rice culture. But it will be a matter of time before this rice field will be abandoned. It was completely impossible to read rings here because the dikes were so high that you could barely see the birds’ heads. Most of the godwits had flown to the same paddy and adjacent mangrove mudflats as on the 30th where they were resting, preening and foraging. However, the ploughed field was now freshly planted with rice seedlings. Perhaps the ploughed field with overturned grass tussocks as well as the

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fresh rains flooding the paddies create the perfect probing environment for godwits. It seemed today that the addition of the rice seedlings did not deter the godwits from returning to this rice paddy and any trampling of the seedlings may occur accidentally. We managed to get a few extra resightings in this group before we returned to Bignona.

Godwits foraging in the saline shallow lake in the Djifangor mudflats.

Godwits resting and preening in a ploughed rice paddy, in the rice fields of Agnack.

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05 September 2018 On our final day in the Casamance we said goodbye to Toussaint and Bojang of Auberge Kayanior and headed immediately for the floodplains of Tobor. It was low tide and at first we did not find any birds but we discovered them finally in the large gully close to bridge behind Tobor. Most birds were just resting or preening and only about 60 of the 350 birds that were present were foraging. Despite the good ring reading conditions we only found 1 ringed bird. We picked up a Little Swift that apparently had fallen in the water at the bridge and fortunately it flew away perfectly after its wings had become dry again. We hurried to the Colobane rice fields near Ziguinchor, eager to read more rings on our final morning. We found a group of 700 birds more or less at the same location as earlier this week. Ring reading was good and from a close distance we identified 14 different individuals that were partly seen earlier this week. To get rid of the mud we could take a shower at the house of Idrissa’s nephew, repack our suitcases and after lunch with the team Casamance 2018, Marcel dropped us off at Ziguinchor airport to take the 16:15 flight to Dakar. From there we took the 23:55 flight to Amsterdam and arrived there in the morning of the 6th.

Project Little Swift rescue! Summary We are looking back on a very successful expedition. The rainy season gave us some free showers but the conditions were generally great to do field work. There was a good cloud cover on most of the days and with a bit of wind and rain, the weather was really just fine. Road conditions were no worse than in other years and we could reach any site that we wanted to go to. Thanks to Idrissa, Marcel and Issa Sylla, logistics were perfectly arranged. The heavy rains filled all the rice paddies which completely waterlogged the soil and created a soft muddy bottom, very different from our previous visit in Nov/Dec 2016 when all the water was drained out of the rice paddies and the clay was baked as hard as concrete. We found a good number of birds this year; about 2150 if you would simply add up the maximum numbers encountered at each site. But we know that godwits exchange a lot between sites and several birds were seen at multiple locations within this week. And scrolling through their life histories it became quite clear that individual birds frequent the same sites over the years. We

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scored 89 resightings of our own scheme and 21 from other ringing schemes in 8 days of fieldwork; these 89 resightings represented 72 individuals. More than 99% of the birds were in full winter plumage and with an average fat-score of 3,5 (n=43; API scale 1-5), they were in excellent condition and ready for a consecutive flight to Guinea Bissau or even further. Foraging individuals were mostly found in two kinds of habitats: either in more or less saline mudflats or in recently ploughed rice fields. In the first habitat they apparently were foraging on Chironomids but in the latter they seemed to be after different kinds of worms. We found two kinds of worms: 3 cm long and 2 mm thick ones that looked like small earthworms and 3 cm long and 0.5 mm thick ones. The first ones were found in the drier parts of the ploughed fields, either in the small dikes or in clumps of mud that were just above the water level. The thin worms seemed to be much more confined to the parts of the rice fields that were fully covered with water. This is unlike the rice fields in Iberia; godwits in West Africa don’t seem to forage on spilled rice from the previous harvest, despite the fact that they are present at exactly the same period of the rice cultivation cycle. In the samples we explored, we did not find any rice kernels, which is also very different from the situation in Iberia. So we learned that the presence of foraging godwits indicated the presence of worms in the freshly ploughed (or freshly seeded) rice paddies or the presence of Chironomids in the more saline mangrove wetlands. We collected 78 new habitat descriptions with the current wet season conditions, as well as 8 sets of mud samples (in sets of 3) for further analysis for chemical residues, organic matter content and texture analysis. Our samples ranged from the rice fields and mangrove wetlands neighbouring Ziguinchor city, to really remotely located sites, therefore we expect some differences in chemical residues. Additionally we managed to get a good sample of the chironomids and the larger earthworms, but we were not so successful in collecting the small earthworms (just 2!). A striking observation was the almost complete absence of shelled benthos in the mangrove mudflats and rice fields. We could walk through most of these habitats without shoes (since the sticky mud often sucked our shoes off our feet). This is likely caused by the overexploitation of people gathering these species from the mud for food, as we passed many very large piles of stacked empty shells on the side of the road. These shells are incorporated into cement used for building. On the other hand rice fields and mangrove wetlands near human settlements contained quite a lot of rubbish, e.g. plastic and glass bottles, broken glass, bits of broken concrete (with mangrove benthos shells incorporated into the concrete). Like in previous years, we heard stories about damage caused by godwits but that differed a lot from site to site. It is clear that godwits were attracted to ploughed rice fields but they kept visiting these fields after the rice seedlings have been planted. We were told that in the Casamance it is not possible to sow rice directly in the paddies because the early arriving godwits would eat the rice. No farmers seem to try that anymore so we cannot confirm that godwits would indeed eat rice in July/ August when the rains arrive. Nowadays the main damage will be caused by trampling freshly planted and not yet established rice seedlings. A solution could be to plough many rice fields at the same time so that the godwits would be diluted over many fields. What we witnessed this week is that there were only a few paddies in each rice field complex that were recently ploughed in the past two weeks and that a lot of godwits were found in just a few paddies which might indeed cause damage. The limiting factor here is that the preparation of the fields has to be done completely manually: there simply is not enough man/ woman(!)-power to achieve this. We did not witness anyone chasing godwits from freshly planted fields and hunting does not seem to be an issue either. People just seem to live the fact that they are there. This expedition was funded by Birdlife Netherlands, University of Groningen, the Spinoza premium (NWO) to TP and supported by Global Flyway Network.

16

Greetings from Team Casamance 2018, Idrissa, Jos, Ruth and Marcel.

Observer: Jos Hooijmeijer

Overview Black-tailed Godwit Resightings

1L194B

Resightings of this bird:

Site Observer(s)

Colourcode:

Date

Ringing site: Workum, Workumer Nieuwland

Name Ringer: Ysbrand Galama

Ringing Date: 19-5-2017

52.95500 N 5.43194 EThe Netherlands

Ringnr: 1L194B

Name 2nd Ringer: Riemer Miedema

Age (in days; 50 = juv.; 99 = ad.): 1

28-8-2018 Fintiok Idrissa Ndiaye12.655 N -16.113 W Senegal

Jos Hooijmeijer

vrijdag 7 september 2018 Page 1

1L2HYB


Site Observer(s)

Colourcode:

Date

Ringing site: Stavoren, Zuidermeerpolder

Name Ringer: Marycha Franken



Ringnr: 1L2HYB

Name 2nd Ringer:

Age (in days; 50 = juv.; 99 = ad.): 1

27-6-2018 Koudum, Haanmeer Mo Verhoeven52.92333 N 5.43500 E The Netherlands

Pablo Macias Torres

2-9-2018 Ziguinchor, Colobane ricefields Jos Hooijmeijer12.585 N -16.285 W Senegal

Idrissa Ndiaye

Ruth Howison


1LA67B


Site Observer(s)

Colourcode:

Date

Ringing site: Koudum, Haanmeer

Name Ringer: João Guilherme



Ringnr: 1421043

Name 2nd Ringer: Rosemarie Kentie

Age (in days; 50 = juv.; 99 = ad.): 1

28-3-2013 It Heidenskip, Polder Aent Lieuwes Ysbrand Galama52.93333 N 5.48361 E The Netherlands

Gjerryt Hoekstra


23-4-2014 Koudum, Haanmeer Raf Vervoort52.92333 N 5.43500 E The Netherlands

31-5-2014 Koudum, Haanmeer Heije Hoekema52.92333 N 5.43500 E The Netherlands



8-2-2015 Porto Alto, Giganta ricefields, Ponta da

Erva

Gjerryt Hoekstra38.91667 N -8.93333 W Portugal


Erva

Ysbrand Galama38.91667 N -8.93333 W Portugal

14-2-2015 Porto Alto, Cara Larga Haije Valkema38.96167 N -8.92056 W Portugal


Erva

Egbert van der Velde38.91667 N -8.93333 W Portugal


Jelle Loonstra

30-4-2016 Koudum, Haanmeer Iris Bontekoe52.92333 N 5.43500 E The Netherlands

28-10-2016 Isla Mayor, Veta la Palma Ysbrand Galama36.97083 N -6.23500 W Spain



15-3-2018 Koudum, Haanmeer Wiebe Kaspersma52.92333 N 5.43500 E The Netherlands

8-4-2018 Koudum, Haanmeer Pablo Macias Torres52.92333 N 5.43500 E The Netherlands

8-6-2018 Koudum, Polder De Samenvoeging Jos Hooijmeijer52.91000 N 5.46139 E The Netherlands


Idrissa Ndiaye

Ruth Howison


Idrissa Ndiaye

Ruth Howison


1LEEEB


Site Observer(s)

Colourcode:

Date

Ringing site: Idzegea, It Joo

Name Ringer: Egbert van der Velde



Ringnr: 1LEEEB

Name 2nd Ringer: Bert Zijlstra (RUG)

Age (in days; 50 = juv.; 99 = ad.): 1

3-7-2013 Blauwhuis, Jacobidyk Egbert van der Velde53.01667 N 5.53333 E The Netherlands

23-3-2016 Workum, Polder de Beveiliging Ysbrand Galama52.99111 N 5.44694 E The Netherlands

6-9-2016 Ziguinchor, Colobane ricefields Idrissa Ndiaye12.585 N -16.285 W Senegal

Khady Gueye

31-3-2017 Pikesyl, Hisse- en Pikemar Tim van der Meer53.00111 N 5.57222 E The Netherlands



Jos Hooijmeijer


Idrissa Ndiaye

Ruth Howison


1LKTCB


Site Observer(s)

Colourcode:

Date

Ringing site: Workum, Workumerbinnenwaard-Noord

Name Ringer: Gjerryt Hoekstra



Ringnr: 1LKTCB

Name 2nd Ringer:

Age (in days; 50 = juv.; 99 = ad.): 1

26-6-2015 Workum, Workumerbinnenwaard-Zuid Wiebe Kaspersma52.97917 N 5.41917 E The Netherlands

Jelle Loonstra

30-6-2015 Workum, Workumerbinnenwaard-Noord Ysbrand Galama52.99611 N 5.41139 E The Netherlands

2-7-2015 Workum, Workumerbinnenwaard-Noord Rinkje van der Zee52.99611 N 5.41139 E The Netherlands

3-7-2015 Workum, Workumerbinnenwaard-Noord Rene Faber52.99611 N 5.41139 E The Netherlands

4-5-2016 Idzegahuizum, Polder Kooihuizen-Noord Guillaume Senterre53.04667 N 5.41806 E The Netherlands

10-6-2016 Makkum, Makkumermeer Zuid Guillaume Senterre53.05694 N 5.44056 E The Netherlands

23-6-2016 Makkum, Makkumermeer Zuid Guillaume Senterre53.05694 N 5.44056 E The Netherlands

8-12-2016 Baila, Baila mudflats Jos Hooijmeijer12.88894 N 016.37945 W Senegal

Idrissa Ndiaye

Ruth Howison

24-5-2017 Makkum, Makkumermeer Zuid Age Hulder53.05694 N 5.44056 E The Netherlands

Mo Verhoeven


Erva

Maarten Hotting38.91667 N -8.93333 W Portugal

10-2-2018 Carregado, ricefields Egbert van der Velde39.029416 N -8.941725 W Portugal

18-2-2018 Carregado, ricefields Haije Valkema39.029416 N -8.941725 W Portugal

22-3-2018 Gaast, Polder Kooihuizen-Zuid Henri Zomer53.02667 N 5.42667 E The Netherlands


30-8-2018 Oussouye, Niambalang mudflats Jos Hooijmeijer12.447 N -16.480 W Senegal

Idrissa Ndiaye

Ruth Howison


1LV60B


Site Observer(s)

Colourcode:

Date


Name Ringer: Rosemarie Kentie



Ringnr: 1438668

Name 2nd Ringer:

Age (in days; 50 = juv.; 99 = ad.): 1

21-3-2015 Leidschendam, Starrevaart Sjaak Schilperoort52.10000 N 4.43333 E The Netherlands

20-3-2016 Uitgeest, Uitgeesterbroekpolder Maarten Hotting52.52222 N 4.74000 E The Netherlands

4-9-2018 Agnack, Agnack ricefields Jos Hooijmeijer12.592 N -16.117 W Senegal

Idrissa Ndiaye

Ruth Howison


1LVT2B


Site Observer(s)

Colourcode:

Date

Ringing site: Stavoren, Zuidermeerpolder

Name Ringer: Marycha Franken



Ringnr: 1LVT2B

Name 2nd Ringer:

Age (in days; 50 = juv.; 99 = ad.): 1

30-6-2017 Stavoren, Zuidermeerpolder Jos Hooijmeijer52.87611 N 5.38361 E The Netherlands

18-7-2017 Workum, Workumerbinnenwaard-Noord Jos Hooijmeijer52.99611 N 5.41139 E The Netherlands


Idrissa Ndiaye

Ruth Howison


A0LLYR


Site Observer(s)

Colourcode:

Date

Ringing site: Unknown

Name Ringer: University of Groningen

Ringing Date: 1-1-2001Ringnr: LLYR

Name 2nd Ringer:

Age (in days; 50 = juv.; 99 = ad.): 99

29-3-2017 Workum, Workumerbinnenwaard-Noord Alice McBride52.99611 N 5.41139 E The Netherlands

4-4-2017 Workum, Workumerbuitenwaard-Noord Jan Kramer52.99222 N 5.40167 E The Netherlands

Eelco Brandenburg

4-4-2017 Workum, Workumerbinnenwaard-Noord Mario Huizinga52.99611 N 5.41139 E The Netherlands


17-4-2017 Workum, Workumerbinnenwaard-Noord Gerard Westerhuis52.99611 N 5.41139 E The Netherlands

Jacob Westerhuis

17-4-2017 Workum, Workumerbinnenwaard-Noord Kees de Jager52.99611 N 5.41139 E The Netherlands

24-3-2018 Workum, Workumerbinnenwaard-Noord IVN Skrok en Skrins52.99611 N 5.41139 E The Netherlands


Jos Hooijmeijer


Idrissa Ndiaye

Ruth Howison


A0RRRL


Site Observer(s)

Colourcode:

Date


Name Ringer: Unknown Unknown

Ringing Date: 1-1-2004Ringnr: RRRL

Name 2nd Ringer:

Age (in days; 50 = juv.; 99 = ad.): 99


Idrissa Ndiaye

Ruth Howison


B3BBLY


Site Observer(s)

Colourcode:

Date


Name Ringer: Nathan Senner



Ringnr: 2505041

Name 2nd Ringer:

Age (in days; 50 = juv.; 99 = ad.): 99

3-6-2014 Koudum, Haanmeer Nathan Senner52.92333 N 5.43500 E The Netherlands

16-6-2014 Idzegea, It Joo Haije Valkema52.98583 N 5.55500 E The Netherlands



Erva


8-3-2015 Sneek, Wite en Swarte Brekken Haije Valkema52.596 N 5.403 E The Netherlands


7-4-2015 Workum, Workumerbinnenwaard-Noord Piet Wiepke Bouma52.99611 N 5.41139 E The Netherlands

1-6-2015 Hindeloopen, Grote Wiskepolder Alice McBride52.93694 N 5.43194 E The Netherlands

11-6-2015 Warns, Kampenspolder Jan Kramer52.87472 N 5.39833 E The Netherlands

19-6-2015 Stavoren, Zuidermeerpolder Marycha Franken52.87611 N 5.38361 E The Netherlands


Erva



Erva



Erva

Haije Valkema38.91667 N -8.93333 W Portugal



Erva


31-3-2016 Koudum, Polder Het Hooge Land Mo Verhoeven52.92806 N 5.44778 E The Netherlands



Erva



Erva



Erva



Erva

Wim Tijsen38.91667 N -8.93333 W Portugal


Erva


20-3-2017 Koudum, Polder De Oosterling Ysbrand Galama52.93444 N 5.45778 E The Netherlands

12-5-2017 Koudum, Polder De Oosterling Jos Hooijmeijer52.93444 N 5.45778 E The Netherlands

9-2-2018 Carregado, ricefields Maarten Hotting39.029416 N -8.941725 W Portugal


20-3-2018 Oostknollendam, Wormer- en Jisperveld

Noord

Kees de Jager52.51361 N 4.79389 E The Netherlands




Idrissa Ndiaye

Ruth Howison



Idrissa Ndiaye

Ruth Howison


B3BRRR


Site Observer(s)

Colourcode:

Date

Ringing site: Koudum, Polder De Samenvoeging

Name Ringer: Jos Hooijmeijer



Ringnr: 2510236

Name 2nd Ringer: Sylke Hooijmeijer

Age (in days; 50 = juv.; 99 = ad.): 99



Jos Hooijmeijer


B3BRRY


Site Observer(s)

Colourcode:

Date

Ringing site: Sanfirden, Sanfurd Ringwielkant




Ringnr: 2510147

Name 2nd Ringer: Tim van der Meer

Age (in days; 50 = juv.; 99 = ad.): 99

10-6-2017 Sanfirden, Sanfurd Ringwielkant Egbert van der Velde52.98167 N 5.53500 E The Netherlands

16-6-2017 Sanfirden, Sanfurd Ringwielkant Egbert van der Velde52.98167 N 5.53500 E The Netherlands



19-2-2018 Carregado, ricefields Siebe Bonthuis39.029416 N -8.941725 W Portugal

19-2-2018 Carregado, ricefields Wim Tijsen39.029416 N -8.941725 W Portugal

26-3-2018 Pikesyl, Hisse- en Pikemar Egbert van der Velde53.00111 N 5.57222 E The Netherlands

2-6-2018 Gaastmeer, Yntemapolder Egbert van der Velde52.96194 N 5.53750 E The Netherlands

22-6-2018 Boazum, Indijk Jan Kramer53.10 N 5.71 E The Netherlands

23-6-2018 Boazum, Indijk Jan Kramer53.10 N 5.71 E The Netherlands


Idrissa Ndiaye

Ruth Howison


B3RYBY


Site Observer(s)

Colourcode:

Date

Ringing site: Hindeloopen, Polder Folkertsma

Name Ringer: Alice McBride



Ringnr: 2504883

Name 2nd Ringer: Mo Verhoeven

Age (in days; 50 = juv.; 99 = ad.): 99

6-6-2014 Hindeloopen, Polder Folkertsma Mo Verhoeven52.93944 N 5.41389 E The Netherlands

Alice McBride


Alice McBride

27-6-2014 Hindeloopen, Polder Folkertsma Nathan Senner52.93944 N 5.41389 E The Netherlands



8-3-2015 Heeg, Gouden Boaijum Bert Zijlstra52.96499 N 5.61991 E The Netherlands

17-3-2015 Koudum, Polder Het Hooge Land Anneke Zeinstra52.92806 N 5.44778 E The Netherlands

19-3-2015 Koudum, Polder Het Hooge Land Wiebe Kaspersma52.92806 N 5.44778 E The Netherlands

4-6-2015 Hindeloopen, Grote Wiskepolder Alice McBride52.93694 N 5.43194 E The Netherlands

17-6-2015 Workum, Workumerbinnenwaard-Zuid Atser Sybrandy (RUG)52.97917 N 5.41917 E The Netherlands

20-8-2015 Dianki Jos Hooijmeijer12.87500 N -16.46278 W Senegal

Haije Valkema

Khady Gueye

23-11-2015 Isla Mayor, Veta la Palma Haije Valkema36.97083 N -6.23500 W Spain

27-3-2016 Hindeloopen, Grote Wiskepolder Wiebe Kaspersma52.93694 N 5.43194 E The Netherlands


8-4-2016 Hindeloopen, Stoenckherne Piet Wiepke Bouma52.94472 N 5.41361 E The Netherlands




15-6-2016 Workum, Workumer Nieuwland Ysbrand Galama52.95500 N 5.43194 E The Netherlands

2-9-2016 Dianki Idrissa Ndiaye12.87500 N -16.46278 W Senegal

Khady Gueye

13-3-2017 Hindeloopen, Polder Folkertsma Wiebe Kaspersma52.93944 N 5.41389 E The Netherlands


Alice McBride

13-6-2017 Gaast, Jouke Sjoerdspolder Age Hulder53.00361 N 5.41972 E The Netherlands

Ysbrand Galama

24-6-2017 Idzegea, It Joo Tim van der Meer52.98583 N 5.55500 E The Netherlands

7-3-2018 Warns, Kampenspolder Heije Hoekema52.87472 N 5.39833 E The Netherlands

28-3-2018 Hindeloopen, Polder Folkertsma Wiebe Kaspersma52.93944 N 5.41389 E The Netherlands



Jos Hooijmeijer


B3YBLL


Site Observer(s)

Colourcode:

Date

Ringing site: Oudega, Tsjerkemar




Ringnr: 2510324

Name 2nd Ringer: Mark Walinga

Age (in days; 50 = juv.; 99 = ad.): 99


23-6-2015 Idzegea, It Joo Egbert van der Velde52.98583 N 5.55500 E The Netherlands


25-1-2016 Isla Mayor, Veta la Palma Jos Hooijmeijer36.97083 N -6.23500 W Spain





Erva



Erva

Astrid Kant38.91667 N -8.93333 W Portugal

28-2-2016 Medellín Fernando Yuste38.98861 N -5.96056 W Spain

28-2-2016 Hernan Cortes Fernando Yuste39.03333 N -5.93333 W Spain

23-3-2016 Oudega, De Rige Haije Valkema52.99556 N 5.56861 E The Netherlands

10-6-2016 Oudega, De Rige Egbert van der Velde52.99556 N 5.56861 E The Netherlands


10-2-2017 Santa Amalia Egbert van der Velde39.00389 N -5.98611 W Spain

12-2-2017 Hernan Cortes Egbert van der Velde39.03333 N -5.93333 W Spain

12-2-2017 Hernan Cortes Wiebe Kaspersma39.03333 N -5.93333 W Spain




17-2-2018 Porto Alto, Cara Larga Astrid Kant38.96167 N -8.92056 W Portugal

Ronald Messemaker


Ronald Messemaker




Idrissa Ndiaye

Ruth Howison


B3YYYR


Site Observer(s)

Colourcode:

Date

Ringing site: Idzegea, It Joo




Ringnr: 2503253

Name 2nd Ringer: Haije Valkema

Age (in days; 50 = juv.; 99 = ad.): 99


Haije Valkema


Erva


Pieter Breeuwsma


Erva

Pieter Breeuwsma38.91667 N -8.93333 W Portugal

Haije Valkema


Erva


Haije Valkema


Erva


Pieter Breeuwsma


Erva


Haije Valkema


Erva

Rene Faber38.91667 N -8.93333 W Portugal

17-3-2013 Durgerdam, IJdoornpolder Marten Schmitz52.37944 N 5.01028 E The Netherlands

19-3-2013 Abbega, Hissedijk Mélodie Tort53.00111 N 5.57222 E The Netherlands

Marta Lomas Vega

19-3-2013 Abbega, Hissedijk Jouke van der Meulen53.00111 N 5.57222 E The Netherlands

20-3-2013 Abbega, Hissedijk Egbert van der Velde53.00111 N 5.57222 E The Netherlands

Bert Zijlstra (RUG)

20-3-2013 Pikesyl, Hisse- en Pikemar Marta Lomas Vega53.00111 N 5.57222 E The Netherlands

4-4-2013 Oudega, Sypset Jouke van der Meulen53.00028 N 5.53556 E The Netherlands


12-4-2013 Oudega, De Rige Chris de Jong52.99556 N 5.56861 E The Netherlands




25-6-2013 Idzegea, Bratte Polder Egbert van der Velde52.97528 N 5.55056 E The Netherlands



Erva



Erva



Erva



Erva

Rienk Jelle Hibma38.91667 N -8.93333 W Portugal


Erva

Hendriekus Algra38.91667 N -8.93333 W Portugal


Erva




Erva



Erva



Erva




8-4-2014 Pikesyl, Hisse- en Pikemar Raf Vervoort53.00111 N 5.57222 E The Netherlands



25-11-2014 Reina Jos Hooijmeijer11.94876 N -15.81112 W Guinea Bissau

Hamilton Monteiro


Erva



21-2-2015 Porto Alto, Ze do Pinho Haije Valkema38.96222 N -8.89167 W Portugal


Erva

Dirk Tanger38.91667 N -8.93333 W Portugal


Erva



Erva



Erva


6-3-2015 Pikesyl, Hisse- en Pikemar Haije Valkema53.00111 N 5.57222 E The Netherlands







Haije Valkema

Khady Gueye

9-12-2015 Reina Jos Hooijmeijer11.94876 N -15.81112 W Guinea Bissau

Haije Valkema

Hamilton Monteiro


Erva



Erva



Erva


24-2-2016 Samorra Correia, Belmonte ricefields Haije Valkema38.91667 N -8.83333 W Portugal

7-3-2016 Uitwellingerga, Geau Polder en de Graverij Egbert van der Velde53.010 N 5.734 E The Netherlands

8-3-2016 Uitwellingerga, Geau Polder en de Graverij Haije Valkema53.010 N 5.734 E The Netherlands


15-3-2016 Sneek, Wite en Swarte Brekken Egbert van der Velde52.596 N 5.403 E The Netherlands



Khady Gueye


Erva



Erva



Erva




Erva



Erva



Erva



Erva

Siebe Bonthuis38.91667 N -8.93333 W Portugal


Erva



Erva, East



Erva, East



Erva



Erva


Ronald Messemaker


Erva


Ronald Messemaker


Erva


Ronald Messemaker

18-2-2017 Porto Alto, Giganta ricefields, Cardal Bob Coenen38.921737 N -8.977164 W Portugal


Erva


Ronald Messemaker


Erva

Jacob de Vries38.91667 N -8.93333 W Portugal


Erva

Jouke Altenburg38.91667 N -8.93333 W Portugal






2-6-2017 Workum, Workumermeer Ysbrand Galama52.99278 N 5.46389 E The Netherlands

Anna Hatsagi


14-2-2018 Porto Alto, Giganta ricefields, Cardal Haije Valkema38.921737 N -8.977164 W Portugal


14-2-2018 Porto Alto, Giganta ricefields, Cardal Egbert van der Velde38.921737 N -8.977164 W Portugal






8-3-2018 Briollay, Vérigné Fabrice Rayer47.583 N -0.500 W France

14-3-2018 Wormer, Wormer en Jisperveld Reinier Krom52.51528 N 4.80694 E The Netherlands




10-6-2018 Workum, Workumermeer Jan Kramer52.99278 N 5.46389 E The Netherlands



Eus de Groot




25-6-2018 Harich, Trophorne Jos Hooijmeijer52.93889 N 5.57222 E The Netherlands


Jos Hooijmeijer


B4BBLL


Site Observer(s)

Colourcode:

Date


Name Ringer: Wiebe Kaspersma



Ringnr: 2511874

Name 2nd Ringer:

Age (in days; 50 = juv.; 99 = ad.): 99




21-6-2018 Harich, Trophorne Wiebe Kaspersma52.93889 N 5.57222 E The Netherlands

Ysbrand Galama

2-9-2018 Tobor Jos Hooijmeijer12.6597 N -16.26313 W Senegal

Idrissa Ndiaye

Pape Cissao Diedhiou


B5BLLL


Site Observer(s)

Colourcode:

Date

Ringing site: Heeg, De Pine




Ringnr: 2505160

Name 2nd Ringer:

Age (in days; 50 = juv.; 99 = ad.): 99


16-6-2014 Heeg, De Pine Egbert van der Velde52.97889 N 5.58306 E The Netherlands

17-6-2014 Heeg, De Pine Haije Valkema52.97889 N 5.58306 E The Netherlands



Erva




11-4-2015 Heeg, De Pine Bert Zijlstra52.97889 N 5.58306 E The Netherlands











Erva




18-1-2017 Isla Mayor, Veta la Palma Rocío Marquez Ferrando36.97083 N -6.23500 W Spain


Erva





10-2-2018 Santa Amalia Jos Hooijmeijer39.00389 N -5.98611 W Spain

Libbe Zijlstra




21-6-2018 Harich, Trophorne Ysbrand Galama52.93889 N 5.57222 E The Netherlands

Wiebe Kaspersma



Idrissa Ndiaye

Ruth Howison


B5LBRY


Site Observer(s)

Colourcode:

Date

Ringing site: Workum, Workumermeer

Name Ringer: Atser Sybrandy



Ringnr: 2505294

Name 2nd Ringer:

Age (in days; 50 = juv.; 99 = ad.): 1

26-5-2014 Workum, Workumermeer Atser Sybrandy52.99278 N 5.46389 E The Netherlands

Jelle Loonstra

2-8-2014 Hiers-Brouage, Fousil Loïc Jomat45.839 N -1.036 W France

3-6-2015 It Heidenskip, Heidenschapster Polder Ysbrand Galama52.95250 N 5.48944 E The Netherlands



6-2-2018 Carregado, ricefields Kees de Jager39.029416 N -8.941725 W Portugal


Idrissa Ndiaye

Ruth Howison


B5RBBR


Site Observer(s)

Colourcode:

Date





Ringnr: 2505017

Name 2nd Ringer:

Age (in days; 50 = juv.; 99 = ad.): 99

14-6-2014 Stavoren, Zuidermeerpolder Rene Faber (RUG)52.87611 N 5.38361 E The Netherlands


11-3-2015 Heeg, Gouden Boaijum Haije Valkema52.96499 N 5.61991 E The Netherlands

18-3-2015 Heeg, Gouden Boaijum Egbert van der Velde52.96499 N 5.61991 E The Netherlands


21-3-2016 Koudum, Polder Groote Wester Gersloot-

Oost, De Poel

Wiebe Kaspersma52.90278 N 5.44722 E The Netherlands






Erva



Erva



Erva




Erva



Erva


21-3-2017 Koudum, Polder Grote Wester Gersloot-

West


26-5-2017 Warns, Kampenspolder Jos Hooijmeijer52.87472 N 5.39833 E The Netherlands

Marycha Franken



19-3-2018 Koudum, Haanmeer Ysbrand Galama52.92333 N 5.43500 E The Netherlands



Idrissa Ndiaye

Ruth Howison


B5YBLL


Site Observer(s)

Colourcode:

Date





Ringnr: 2505097


Age (in days; 50 = juv.; 99 = ad.): 99




19-6-2014 Idzegea, De Geeuw Haije Valkema52.98417 N 5.56722 E The Netherlands


12-3-2015 Workum, Workumerbuitenwaard-Zuid, It

Soal

Ysbrand Galama52.98056 N 5.40778 E The Netherlands


Soal

Gjerryt Hoekstra52.98056 N 5.40778 E The Netherlands


Soal

Teade de Boer52.98056 N 5.40778 E The Netherlands

Rienk Jelle Hibma

Pieter Breeuwsma



16-6-2015 Koudum, Haanmeer Age Hulder52.92333 N 5.43500 E The Netherlands

Wiebe Kaspersma

26-6-2015 Gaast, Polder Gaast-Ferwoude Emma Penning53.01806 N 5.43194 E The Netherlands


Erva




Erva



Erva



Erva



Wender Bil

7-6-2016 Easterlittens, Wammert, Wammerterpolder Guillaume Senterre53.13694 N 5.68306 E The Netherlands

Jos Hooijmeijer


Khady Gueye


Khady Gueye

17-2-2017 Porto Alto, Giganta ricefields, Cardal Jacob de Vries38.921737 N -8.977164 W Portugal

17-3-2017 Koudum, Haanmeer Jelle Loonstra52.92333 N 5.43500 E The Netherlands








Idrissa Ndiaye

Ruth Howison


B5YLLL


Site Observer(s)

Colourcode:

Date


Name Ringer: Rinkje van der Zee



Ringnr: 2505454

Name 2nd Ringer:

Age (in days; 50 = juv.; 99 = ad.): 99

2-2-2014 Hernan Cortes Mo Verhoeven39.03333 N -5.93333 W Spain

Alice McBride

Nathan Senner

12-2-2014 Hernan Cortes Alice McBride39.03333 N -5.93333 W Spain

Mo Verhoeven


Mo Verhoeven

1-4-2014 Exmorra, Parregaastermeer Jelle Loonstra53.03194 N 5.45361 E The Netherlands

17-5-2014 Workum, Workumerbinnenwaard-Noord Dolf van der Gaag52.99611 N 5.41139 E The Netherlands

29-1-2015 Hernan Cortes Nathan Senner39.03333 N -5.93333 W Spain

Mo Verhoeven

Alice McBride


Mo Verhoeven

Alice McBride


Mo Verhoeven

Nathan Senner

3-2-2015 Almoharin Mo Verhoeven39.15000 N -6.03333 W Spain

Alice McBride

Nathan Senner


Jelle Loonstra

Alice McBride


Alice McBride

Mo Verhoeven

31-3-2015 It Heidenskip, Workumerveld Ysbrand Galama52.97111 N 5.46972 E The Netherlands

24-4-2015 Workum, Workumerbinnenwaard-Noord Gjerryt Hoekstra52.99611 N 5.41139 E The Netherlands


19-6-2015 Workum, Workumerbinnenwaard-Noord Wiebe Kaspersma52.99611 N 5.41139 E The Netherlands

20-6-2015 Workum, Workumerbinnenwaard-Zuid Gjerryt Hoekstra52.97917 N 5.41917 E The Netherlands


Gjerryt Hoekstra

26-4-2016 Workum, Workumerbinnenwaard-Noord Taeke Roosjen52.99611 N 5.41139 E The Netherlands

30-5-2016 Workum, Workumerbinnenwaard-Noord Atser Sybrandy (RUG)52.99611 N 5.41139 E The Netherlands

17-6-2016 Workum, Workumerbuitenwaard-Noord Gjerryt Hoekstra52.99222 N 5.40167 E The Netherlands

20-6-2016 Workum, Workumerbuitenwaard-Noord Gjerryt Hoekstra52.99222 N 5.40167 E The Netherlands

22-6-2016 Workum, Workumerbuitenwaard-Noord Jos Hooijmeijer52.99222 N 5.40167 E The Netherlands

24-6-2016 Gaast, Jouke Sjoerdspolder Guillaume Senterre53.00361 N 5.41972 E The Netherlands

25-6-2016 Gaast, Jouke Sjoerdspolder Ysbrand Galama53.00361 N 5.41972 E The Netherlands

1-2-2017 Hernan Cortes Drew Bingrun39.03333 N -5.93333 W Spain

2-2-2017 Hernan Cortes Jelle Loonstra39.03333 N -5.93333 W Spain










9-2-2017 Hernan Cortes - Santa Amalia Jos Hooijmeijer39.030 N -5.959 W Spain



1-5-2017 Workum, Workumerbinnenwaard-Noord Jan Kramer52.99611 N 5.41139 E The Netherlands

7-5-2017 Workum, Workumerbinnenwaard-Noord Piet Feenstra52.99611 N 5.41139 E The Netherlands

9-6-2017 Workum, Workumerbinnenwaard-Noord Mo Verhoeven52.99611 N 5.41139 E The Netherlands


Jos Hooijmeijer


B5YLYB


Site Observer(s)

Colourcode:

Date

Ringing site: Workum, Workumerbinnenwaard-Zuid




Ringnr: 2505451

Name 2nd Ringer:

Age (in days; 50 = juv.; 99 = ad.): 99


1-4-2014 Gaast, Polder Gaast-Ferwoude Jelle Loonstra53.01806 N 5.43194 E The Netherlands

18-10-2014 Palmarin, Fata Khady Gueye14.09972 N -16.78222 W Senegal


4-7-2015 Workum, Workumerbinnenwaard-Zuid Ysbrand Galama52.97917 N 5.41917 E The Netherlands

7-7-2015 Workum, Workumerbinnenwaard-Noord Dirk Kuiken52.99611 N 5.41139 E The Netherlands

8-7-2015 Workum, Workumerbinnenwaard-Noord Haije Valkema52.99611 N 5.41139 E The Netherlands



4-8-2015 Huelva, Parque Natural de las Marismas

del Odiel

José Manuel Méndez Garcia37.23333 N -6.96667 W Spain



13-5-2016 Workum, Workumerbinnenwaard-Zuid Rene Faber52.97917 N 5.41917 E The Netherlands



22-6-2016 Workum, Workumerbinnenwaard-Zuid Jos Hooijmeijer52.97917 N 5.41917 E The Netherlands




Idrissa Ndiaye

Ruth Howison

2-4-2017 Workum, Workumerbinnenwaard-Zuid Alice McBride52.97917 N 5.41917 E The Netherlands

Gjerryt Hoekstra


24-6-2017 Workum, Workumerbinnenwaard-Zuid Jelle Loonstra52.97917 N 5.41917 E The Netherlands

Wiebe Kaspersma

11-7-2017 Hinnaard Jos Hooijmeijer53.11750 N 5.66278 E The Netherlands



Gjerryt Hoekstra


Idrissa Ndiaye

Ruth Howison


B5YRLL


Site Observer(s)

Colourcode:

Date

Ringing site: Makkum, Makkumermeer Zuid

Name Ringer: Merlijn de Graaf



Ringnr: 2505209

Name 2nd Ringer:

Age (in days; 50 = juv.; 99 = ad.): 99

20-6-2013 Makkum, Makkumermeer Zuid Jelle Loonstra53.05694 N 5.44056 E The Netherlands


Erva



Erva


25-3-2014 Makkum, Makkumermeer Zuid Rosemarie Kentie53.05694 N 5.44056 E The Netherlands

15-4-2014 Makkum, Makkumermeer Zuid Rosemarie Kentie53.05694 N 5.44056 E The Netherlands



19-6-2014 Makkum, Makkumermeer Zuid Jelle Loonstra53.05694 N 5.44056 E The Netherlands

23-6-2014 Workum, Workumerbinnenwaard-Noord Arjan Hell52.99611 N 5.41139 E The Netherlands

23-6-2014 Workum, Workumerbinnenwaard-Noord Jelle Loonstra52.99611 N 5.41139 E The Netherlands


27-6-2014 Workum, Workumerbinnenwaard-Noord Anneke Zeinstra52.99611 N 5.41139 E The Netherlands


Erva




Erva



Erva



Erva



Erva



Erva




Erva


12-3-2015 Makkum, Makkumer Zuidwaard Gjerryt Hoekstra53.04472 N 5.38722 E The Netherlands

20-4-2015 Makkum, Makkumermeer Zuid Emma Penning53.05694 N 5.44056 E The Netherlands

9-6-2015 Makkum, Makkumermeer Zuid Emma Penning53.05694 N 5.44056 E The Netherlands


Ester Schaaf



Marijke de Bar


21-6-2015 Workum, Workumerbinnenwaard-Noord Rene Faber52.99611 N 5.41139 E The Netherlands


Erva




Erva



Erva



Erva


25-2-2016 Samorra Correia, Belmonte ricefields Egbert van der Velde38.91667 N -8.83333 W Portugal


14-6-2016 Workum, Polder de Beveiliging Jan Kramer52.99111 N 5.44694 E The Netherlands

Eric ten Cate

14-6-2016 Workum, Polder de Beveiliging Guillaume Senterre52.99111 N 5.44694 E The Netherlands

17-6-2016 Workum, Polder de Beveiliging Sofia Briosa e Scheltinga52.99111 N 5.44694 E The Netherlands

22-6-2016 Gaastmeer, De Lange Hoek Egbert van der Velde52.95000 N 5.53333 E The Netherlands



Erva



Erva



Erva



Erva



Erva



Erva




Erva



Erva


Siebe (RUG) Bonthuis


Erva





Erva

Jan Vegelin38.91667 N -8.93333 W Portugal


Erva

José Alves38.91667 N -8.93333 W Portugal

Jenny Gill

Graham Appleton

8-4-2017 Makkum, Makkumermeer Zuid Age Hulder53.05694 N 5.44056 E The Netherlands



Erva



Erva, East

Kees de Jager38.910421 N -8.919625 W Portugal

7-2-2018 Porto Alto, Cara Larga Kees de Jager38.96167 N -8.92056 W Portugal

7-2-2018 Porto Alto, Cara Larga Maarten Hotting38.96167 N -8.92056 W Portugal

8-2-2018 Porto Alto, Giganta ricefields, Cardal Maarten Hotting38.921737 N -8.977164 W Portugal

29-3-2018 Makkum, Makkumermeer Zuid Ysbrand Galama53.05694 N 5.44056 E The Netherlands

Riemer Miedema

10-4-2018 Makkum, Makkumermeer Zuid Tim Oortwijn53.05694 N 5.44056 E The Netherlands




Jos Hooijmeijer


Idrissa Ndiaye

Ruth Howison


B6BRRL


Site Observer(s)

Colourcode:

Date

Ringing site: Idzegea, De Geeuw

Name Ringer: Haije Valkema



Ringnr: 2504922

Name 2nd Ringer:

Age (in days; 50 = juv.; 99 = ad.): 99



16-6-2015 Idzegea, De Geeuw Egbert van der Velde52.98417 N 5.56722 E The Netherlands

17-6-2015 Rotsterhaule Simon de Winter52.928889 N 5.851944 E The Netherlands






24-3-2016 Sanfirden, Sanfurd Brekkenkant Egbert van der Velde52.98889 N 5.53111 E The Netherlands


17-6-2016 Nijhuizum, Monnikeburenpolder Sofia Briosa e Scheltinga52.99278 N 5.49972 E The Netherlands



26-10-2016 Isla Mayor, Veta la Palma, rice fields Ysbrand Galama37.03556 N -6.19500 W Spain

26-10-2016 Isla Mayor, Veta la Palma, rice fields Ysbrand Galama37.03556 N -6.19500 W Spain





Mo Verhoeven

20-6-2017 Workum, Workumermeer Egbert van der Velde52.99278 N 5.46389 E The Netherlands


20-6-2017 Workum, Workumermeer Wiebe Kaspersma52.99278 N 5.46389 E The Netherlands

Anna Hatsagi

24-6-2017 Heeg, De Pine Tim van der Meer52.97889 N 5.58306 E The Netherlands




15-6-2018 Gaast, Jouke Sjoerdspolder Tim Oortwijn53.00361 N 5.41972 E The Netherlands


Jos Hooijmeijer


Jos Hooijmeijer


B6LBBB


Site Observer(s)

Colourcode:

Date

Ringing site: Workum, Polder de Beveiliging




Ringnr: 2505197

Name 2nd Ringer:

Age (in days; 50 = juv.; 99 = ad.): 99

22-5-2015 Workum, Polder de Beveiliging Atser Sybrandy (RUG)52.99111 N 5.44694 E The Netherlands





Haije Valkema

Khady Gueye


Erva



Erva




Mo Verhoeven




Idrissa Ndiaye

Ruth Howison


B6LRRL


Site Observer(s)

Colourcode:

Date

Ringing site: Idzegea, Bratte Polder

Name Ringer: Haije Valkema



Ringnr: 2505236

Name 2nd Ringer:

Age (in days; 50 = juv.; 99 = ad.): 99



25-6-2014 Gaast, Jouke Sjoerdspolder Jelle Loonstra53.00361 N 5.41972 E The Netherlands

26-6-2014 Kleine Gaastmeer, Kaappolder West Haije Valkema52.97444 N 5.50528 E The Netherlands

Jos Hooijmeijer




Jos Hooijmeijer


B6LRRR


Site Observer(s)

Colourcode:

Date

Ringing site: Gaastmeer, Grutte Polder Noordwest




Ringnr: 2504747

Name 2nd Ringer:

Age (in days; 50 = juv.; 99 = ad.): 99

7-6-2016 Easterlittens, Wammert, Wammerterpolder Guillaume Senterre53.13694 N 5.68306 E The Netherlands

Jos Hooijmeijer


14-6-2017 Gaastmeer, Grutte Polder Noordwest Tim van der Meer52.96472 N 5.55611 E The Netherlands


14-2-2018 Carregado, ricefields Astrid Kant39.029416 N -8.941725 W Portugal

Ronald Messemaker

19-3-2018 Smallebrugge Egbert van der Velde52.954316 N 5.644302 E The Netherlands


1-9-2018 Fintiok Jos Hooijmeijer12.655 N -16.113 W Senegal

Idrissa Ndiaye

Ruth Howison


B6YBLY


Site Observer(s)

Colourcode:

Date





Ringnr: 2505170

Name 2nd Ringer:

Age (in days; 50 = juv.; 99 = ad.): 99





Erva


17-3-2015 Makkum, Makkumer Zuidwaard Emma Penning53.04472 N 5.38722 E The Netherlands

20-4-2015 Workum, Workumerbinnenwaard-Noord Willem de Wolf52.99611 N 5.41139 E The Netherlands

10-6-2015 Gaast, Jouke Sjoerdspolder Emma Penning53.00361 N 5.41972 E The Netherlands

Gjerryt Hoekstra


Khady Gueye


Khady Gueye


Erva



Erva








22-6-2018 Workum, Workumermeer Egbert van der Velde52.99278 N 5.46389 E The Netherlands


Idrissa Ndiaye

Ruth Howison


C1WWWP


Site Observer(s)

Colourcode:

Date


Name Ringer: Sjoerd Hobma



Ringnr: 2511632

Name 2nd Ringer:

Age (in days; 50 = juv.; 99 = ad.): 4



6-8-2018 Tobor Pape Cissao Diedhiou12.6597 N -16.26313 W Senegal


Jos Hooijmeijer


Idrissa Ndiaye

Ruth Howison


G1GPCW


Site Observer(s)

Colourcode:

Date

Ringing site: Buren, Grie

Name Ringer: Jan F de Jong



Ringnr: 2512348

Name 2nd Ringer: Paules Brouwer

Age (in days; 50 = juv.; 99 = ad.): 17

29-7-2018 Ballum, Lange Sloot Jan F de Jong53.428428 N 5.691421 E The Netherlands


Idrissa Ndiaye

Ruth Howison


G2PGPW


Site Observer(s)

Colourcode:

Date

Ringing site: Wommels, Zuidhoeksterpolder, Slachtedyk




Ringnr: 2512964

Name 2nd Ringer: Rienk Jelle Hibma

Age (in days; 50 = juv.; 99 = ad.): 99



Idrissa Ndiaye

Ruth Howison


G3PGCC


Site Observer(s)

Colourcode:

Date

Ringing site: De Woude, Westwouderpolder

Name Ringer: Fred Cottaar



Ringnr: 2505540

Name 2nd Ringer: Dirk Tanger

Age (in days; 50 = juv.; 99 = ad.): 99

5-5-2017 De Woude, Westwouderpolder Kees de Jager52.54639 N 4.76722 E The Netherlands






Jos Hooijmeijer


G3PGCW


Site Observer(s)

Colourcode:

Date

Ringing site: De Woude, Westwouderpolder

Name Ringer: Fred Cottaar



Ringnr: 2505542

Name 2nd Ringer: Dirk Tanger

Age (in days; 50 = juv.; 99 = ad.): 99







Idrissa Ndiaye

Ruth Howison


G5CCWP


Site Observer(s)

Colourcode:

Date

Ringing site: Kedichem, Polder Vijfheerenlanden West

Name Ringer: Astrid Kant



Ringnr: 2515234

Name 2nd Ringer: Els Oostenbrink

Age (in days; 50 = juv.; 99 = ad.): 99

11-6-2018 Kedichem, Polder Vijfheerenlanden West Astrid Kant51.89278 N 5.03278 E The Netherlands


Idrissa Ndiaye

Ruth Howison


G5CPGW


Site Observer(s)

Colourcode:

Date

Ringing site: Vianen, Polder Vijfheerenlanden Noordwest




Ringnr: 2508439

Name 2nd Ringer:

Age (in days; 50 = juv.; 99 = ad.): 99

7-7-2016 Tiguet, Station Biologique du PN du

Djoudj

Khady Gueye16.35000 N -16.26667 W Senegal


Djoudj

Haije Valkema16.35000 N -16.26667 W Senegal

5-3-2017 Lexmond, Achthoven, Lekuiterwaard Tom van Kerkhoff51.96750 N 5.01472 E The Netherlands

24-3-2017 Vianen, Polder Vijfheerenlanden

Noordwest

Astrid Kant51.95611 N 5.10583 E The Netherlands


Noordwest



Noordwest



Idrissa Ndiaye

Ruth Howison


G5PCCW


Site Observer(s)

Colourcode:

Date





Ringnr: 2515290

Name 2nd Ringer:

Age (in days; 50 = juv.; 99 = ad.): 10

28-8-2018 Koubanao Idrissa Ndiaye12.65385 N -16.09191 W Senegal

Jos Hooijmeijer


G5WWCG


Site Observer(s)

Colourcode:

Date





Ringnr: 2513501

Name 2nd Ringer:

Age (in days; 50 = juv.; 99 = ad.): 99

20-5-2016 Everdingen, Lek forelands Jouke Altenburg51.96639 N 5.16778 E The Netherlands

27-5-2016 Everdingen, Lek forelands Mario Huizinga51.96639 N 5.16778 E The Netherlands


Erva



















Djoudj

Idrissa Ndiaye16.35000 N -16.26667 W Senegal









29-8-2018 Tobor Idrissa Ndiaye12.6597 N -16.26313 W Senegal

Jos Hooijmeijer


L1LLYR


Site Observer(s)

Colourcode:

Date

Ringing site: Isla Mayor, Veta la Palma

Name Ringer: Manolo Vazquez


36.97083 N -6.23500 WSpain

Ringnr: 4108683

Name 2nd Ringer: Carlos Moreno

Age (in days; 50 = juv.; 99 = ad.): 99


Haije Valkema


Haije Valkema

14-6-2012 Oudega, De Rige Rene Faber52.99556 N 5.56861 E The Netherlands


18-12-2012 El Rocio, Lucio de Mari Lopez Jos Hooijmeijer37.04833 N -6.30472 W Spain

28-12-2012 El Rocio, Lucio de Mari Lopez Rocío Marquez Ferrando37.04833 N -6.30472 W Spain

Jorge Gutiérrez

19-3-2013 Abbega, Hemdijk Jouke van der Meulen53.01667 N 5.56667 E The Netherlands

20-3-2013 Abbega, Hemdijk Jouke van der Meulen53.01667 N 5.56667 E The Netherlands

20-3-2013 Pikesyl, Hisse- en Pikemar Ysbrand Galama53.00111 N 5.57222 E The Netherlands

20-3-2013 Pikesyl, Hisse- en Pikemar Marta Lomas Vega53.00111 N 5.57222 E The Netherlands


Marycha Franken





Idrissa Ndiaye

Ruth Howison


L1YLRL


Site Observer(s)

Colourcode:

Date

Ringing site: Isla Mayor, Veta la Palma

Name Ringer: Manolo Vazquez


36.97083 N -6.23500 WSpain

Ringnr: 4131880

Name 2nd Ringer:

Age (in days; 50 = juv.; 99 = ad.): 99


Erva


Haije Valkema


Erva


Pieter Breeuwsma


Erva



Erva


6-5-2013 Durgerdam, IJdoornpolder Guus van Duin52.37944 N 5.01028 E The Netherlands

4-6-2013 Durgerdam, IJdoornpolder Rene Faber52.37944 N 5.01028 E The Netherlands





Alice McBride

Nathan Senner


Nathan Senner

Mo Verhoeven


Alice McBride

Mo Verhoeven





7-6-2015 Durgerdam, IJdoornpolder Frank van Groen52.37944 N 5.01028 E The Netherlands




Libbe Zijlstra

24-3-2018 Durgerdam, Kinselmeer (birdhide) Sander Hietkamp52.38306 N 5.00528 E The Netherlands

24-3-2018 Durgerdam, IJdoornpolder Els Oostenbrink52.37944 N 5.01028 E The Netherlands

15-4-2018 Zuiderwoude, Aandammergouw Roely Bos52.426 N 5.032 E The Netherlands

15-4-2018 Durgerdam, Kinselmeer (birdhide) Martijn van Schie52.38306 N 5.00528 E The Netherlands

15-4-2018 Durgerdam, Kinselmeer (birdhide) Roely Bos52.38306 N 5.00528 E The Netherlands



Jos Hooijmeijer


L1YRBR


Site Observer(s)

Colourcode:

Date

Ringing site: Samora Correia, Samora Correia ricefields

Name Ringer: Pedro Lourenço


38.94194 N -8.88528 WPortugal

Ringnr: J013227


Age (in days; 50 = juv.; 99 = ad.): 99

5-4-2009 Zuiderwoude, Kerk Ae, Arken Ae,

Bozenmeertje

Frank Visbeen52.43000 N 5.03139 E The Netherlands


Bozenmeertje


23-2-2010 Samora Correia, Samora Correia ricefields Ysbrand Galama38.94194 N -8.88528 W Portugal


Bozenmeertje

Maarten Hotting52.43000 N 5.03139 E The Netherlands


Bozenmeertje

Willem van der Waal52.43000 N 5.03139 E The Netherlands


Bozenmeertje



Bozenmeertje


22-6-2010 Durgerdam, IJdoornpolder Frank Visbeen52.37944 N 5.01028 E The Netherlands

Rene Faber

Jan van der Geld



26-2-2012 Porto Alto, Cara Larga Dirk Tanger38.96167 N -8.92056 W Portugal

26-2-2012 Porto Alto, Cara Larga Rene Faber38.96167 N -8.92056 W Portugal

3-3-2012 Jisp Kees de Jager52.50750 N 4.87167 E The Netherlands


5-3-2012 Jisp Kees de Jager52.50750 N 4.87167 E The Netherlands


Bozenmeertje

Jelle Abma52.43000 N 5.03139 E The Netherlands


Bozenmeertje

Barbara Lindenhovius52.43000 N 5.03139 E The Netherlands

Louis Boersma


Bozenmeertje

Ab Kalkman52.43000 N 5.03139 E The Netherlands


Bozenmeertje



Bozenmeertje



Erva


Pieter Breeuwsma


Bozenmeertje



Bozenmeertje

Rene Faber52.43000 N 5.03139 E The Netherlands


Bozenmeertje



Bozenmeertje



Bozenmeertje



Bozenmeertje

Jonathan Ross52.43000 N 5.03139 E The Netherlands


Bozenmeertje



Bozenmeertje



Bozenmeertje






Erva



Erva



Bozenmeertje



Bozenmeertje

Lyda Kanters52.43000 N 5.03139 E The Netherlands


Bozenmeertje



Bozenmeertje



Bozenmeertje



Bozenmeertje



Bozenmeertje



Bozenmeertje



Bozenmeertje



Bozenmeertje



Bozenmeertje

A. van Overveld52.43000 N 5.03139 E The Netherlands


Bozenmeertje




Bozenmeertje



Bozenmeertje



Bozenmeertje



Bozenmeertje

Monica Wolters52.43000 N 5.03139 E The Netherlands


Bozenmeertje



Bozenmeertje



Erva


10-3-2016 Isla Mayor, Veta la Palma Alberto Pastoriza36.97083 N -6.23500 W Spain


Bozenmeertje

Marianne Slot52.43000 N 5.03139 E The Netherlands


Bozenmeertje



Bozenmeertje



Bozenmeertje



Bozenmeertje



Bozenmeertje



Bozenmeertje

Wim Tijsen52.43000 N 5.03139 E The Netherlands


Erva




Erva



Erva



Erva



Bozenmeertje

Marieke Schous52.43000 N 5.03139 E The Netherlands


Bozenmeertje



Bozenmeertje

Marianne Slot52.43000 N 5.03139 E The Netherlands


Bozenmeertje



Bozenmeertje



Bozenmeertje



Bozenmeertje



Bozenmeertje

Maarten Hotting52.43000 N 5.03139 E The Netherlands


Bozenmeertje



Bozenmeertje



Bozenmeertje


8-4-2018 Zuiderwoude, Aandammergouw René Beekvelt52.426 N 5.032 E The Netherlands

15-4-2018 Zuiderwoude, Aandammergouw Evelien Kobus52.426 N 5.032 E The Netherlands


3-5-2018 Zuiderwoude, Aandammergouw Steven Wytema52.426 N 5.032 E The Netherlands

18-5-2018 Zuiderwoude, Aandammergouw Adrie Streefland52.426 N 5.032 E The Netherlands


Jos Hooijmeijer


Idrissa Ndiaye

Ruth Howison


L1YRLR


Site Observer(s)

Colourcode:

Date

Ringing site: Samora Correia, Samora Correia ricefields



38.94194 N -8.88528 WPortugal

Ringnr: J013217


Age (in days; 50 = juv.; 99 = ad.): 99

27-4-2010 Kating, Katinger Watt Manfred Lindemann54.28389 N 8.84417 E Germany

4-7-2010 Wallsbüll, Beltringharderkoog Olaf Ekelöf54.566287 N 8.912908 E Germany

8-3-2011 L'Ile d'Olonne, Réserve de Chanteloup Michel Fouquet46.55000 N -1.78333 W France

30-3-2011 Kating, Katinger Watt Olaf Ekelöf54.28389 N 8.84417 E Germany

14-4-2011 Kating, Katinger Watt Holger Bruns54.28389 N 8.84417 E Germany


21-4-2011 Kating, Katinger Watt Dominic Cimiotti54.28389 N 8.84417 E Germany

30-4-2011 Meldorf, Dithmarscher und Meldorfer

Speicherkoog

Victor Corman54.11167 N 8.94694 E Germany

6-5-2011 Kating, Katinger Watt Eleonore Gothe54.28389 N 8.84417 E Germany


20-6-2011 Schlüttsiel, Hauke-Haien-Koog Olaf Ekelöf54.66861 N 8.78028 E Germany

1-7-2011 Schlüttsiel, Hauke-Haien-Koog Olaf Ekelöf54.66861 N 8.78028 E Germany


Erva


Pieter Breeuwsma



Erva



4-6-2016 Aldeboarn, Veenpolder Jouke Altenburg53.0436932 N 5.9189162 The Netherlands


Jos Hooijmeijer


L3LLLL


Site Observer(s)

Colourcode:

Date





Ringnr: 2503053

Name 2nd Ringer: Ysbrand Galama

Age (in days; 50 = juv.; 99 = ad.): 99

22-4-2014 Workum, Workumerbinnenwaard-Noord Rosemarie Kentie52.99611 N 5.41139 E The Netherlands

22-11-2014 Unche Jos Hooijmeijer12.01028 N -15.61444 W Guinea Bissau

Haije Valkema

Jan van der Kamp

23-11-2014 Unche Jan van der Kamp12.01028 N -15.61444 W Guinea Bissau

Jos Hooijmeijer

Haije Valkema

27-11-2014 Pache, Iala Haije Valkema12.035 N -15.641 W Guinea Bissau

Jos Hooijmeijer

Jan van der Kamp





13-4-2016 Workum, Workumermeer Sofia Briosa e Scheltinga52.99278 N 5.46389 E The Netherlands

Atser Sybrandy (RUG)



Erva



Erva



Erva, East




Erva, East



Erva



25-3-2017 Workum, Workumerbuitenwaard-Noord Alice McBride52.99222 N 5.40167 E The Netherlands




21-2-2018 Porto Alto, Cara Larga Wim Tijsen38.96167 N -8.92056 W Portugal




Idrissa Ndiaye

Ruth Howison


L3RRLY


Site Observer(s)

Colourcode:

Date





Ringnr: 2503066


Age (in days; 50 = juv.; 99 = ad.): 99


14-6-2014 Le Teich, Réserve Ornithologique du Teich Claude Feigné44.65000 N -1.03333 W France

20-6-2014 Gaast, Jouke Sjoerdspolder Rene Faber (RUG)53.00361 N 5.41972 E The Netherlands

23-6-2014 Workum, Workumerbinnenwaard-Noord Arjan Hell52.99611 N 5.41139 E The Netherlands




Mo Verhoeven


30-6-2015 Stavoren, Zuidermeerpolder Ysbrand Galama52.87611 N 5.38361 E The Netherlands


Mo Verhoeven


24-8-2015 Fintiok Haije Valkema12.655 N -16.113 W Senegal

Jos Hooijmeijer


Erva




Erva



Erva



Erva




29-8-2016 Fintiok Idrissa Ndiaye12.655 N -16.113 W Senegal

Khady Gueye



Tim van der Meer

18-6-2017 Harich, Trophorne Egbert van der Velde52.93889 N 5.57222 E The Netherlands

Tim van der Meer



Idrissa Ndiaye

Ruth Howison


L3YBRR


Site Observer(s)

Colourcode:

Date


Name Ringer: Jorge Gutiérrez



Ringnr: 2505167


Age (in days; 50 = juv.; 99 = ad.): 35



Jelle Loonstra

14-6-2015 Gaast, Polder Gaast-Ferwoude Wiebe Kaspersma53.01806 N 5.43194 E The Netherlands



Mo Verhoeven


West

Marycha Franken52.90056 N 5.43194 E The Netherlands




Erva


14-2-2017 Porto Alto, Giganta ricefields, Cardal Bob Loos38.921737 N -8.977164 W Portugal


14-2-2017 Porto Alto, Giganta ricefields, Cardal Wim Tijsen38.921737 N -8.977164 W Portugal



16-2-2017 Vila Franca de Xira, Giganta ricefields Jan Vegelin38.938 N -8.968 W Portugal





22-2-2018 Samorra Correia, Belmonte ricefields Wim Tijsen38.91667 N -8.83333 W Portugal

23-2-2018 Porto Alto, Toneca Siebe Bonthuis38.95361 N -8.93639 W Portugal

23-2-2018 Porto Alto, Toneca Wim Tijsen38.95361 N -8.93639 W Portugal











Mo Verhoeven




Jos Hooijmeijer


L3YRLL


Site Observer(s)

Colourcode:

Date


Name Ringer: Mo Verhoeven



Ringnr: 2503114

Name 2nd Ringer:

Age (in days; 50 = juv.; 99 = ad.): 99

11-4-2013 It Heidenskip, Workumerveld Jorge Gutiérrez52.97111 N 5.46972 E The Netherlands

Berber de Jong

21-4-2013 Greonterp, De Ryp Jouke van der Meulen52.99833 N 5.52250 E The Netherlands


21-6-2013 Gaast, Jouke Sjoerdspolder Rene Faber53.00361 N 5.41972 E The Netherlands


1-7-2013 Abbega, Hissedijk Egbert van der Velde53.00111 N 5.57222 E The Netherlands

Haije Valkema

5-7-2013 Tjerkwerd, Hemdijk Egbert van der Velde53.02972 N 5.51944 E The Netherlands


Erva



Erva



Erva



Erva


18-7-2014 Piaam, Kooiwaard Jos Hooijmeijer53.03111 N 5.40028 E The Netherlands


Erva




Erva



Erva



Erva



Erva



Erva



Erva



Erva



Erva




Erva



Erva



Erva



Erva



Erva



Erva








Erva



Erva



Erva



Erva



Erva



Erva


22-3-2016 Westervoort, Hondsbroekse Pleij Roy Verhoef51.95000 N 5.95000 E The Netherlands












18-2-2018 Carregado, ricefields Jan Kramer39.029416 N -8.941725 W Portugal

Rennie Kramer




Idrissa Ndiaye

Ruth Howison


R3BBLB


Site Observer(s)

Colourcode:

Date

Ringing site: Bemmel, Lingewal, Geranium

Name Ringer: Frank Majoor



Ringnr: 2502096

Name 2nd Ringer:

Age (in days; 50 = juv.; 99 = ad.): 99





Erva



Erva



Erva



Erva



Erva


15-3-2014 Huissen, Lingewal Frank Majoor51.91861 N 5.90472 E The Netherlands

13-4-2014 Huissen, Lingewal Frank Majoor51.91861 N 5.90472 E The Netherlands


Alice McBride

Mo Verhoeven


Alice McBride

Nathan Senner


Jelle Loonstra

Alice McBride



Nathan Senner

Mo Verhoeven

2-6-2015 Saint Denis du Payré Paul Trotignon46.40000 N -1.25000 W France

10-2-2016 Hernan Cortes Rosemarie Kentie39.03333 N -5.93333 W Spain

Haije Valkema

11-2-2016 Hernan Cortes Haije Valkema39.03333 N -5.93333 W Spain

10-3-2016 Westervoort, IJsselbrug Jurgen Rotteveel51.9675 N 5.96083333333 The Netherlands

11-3-2016 Westervoort, IJsselbrug Maarten Hageman51.9675 N 5.96083333333 The Netherlands

12-3-2016 Westervoort, IJsselbrug Bob Coenen51.9675 N 5.96083333333 The Netherlands

12-3-2016 Westervoort, IJsselbrug Roy Verhoef51.9675 N 5.96083333333 The Netherlands

16-3-2016 Huissen, Lingeplasjes Karbrug Peter Brouwer51.907 N 5.919 E The Netherlands



Khady Gueye


Erva



Erva



Erva




Idrissa Ndiaye

Ruth Howison



Idrissa Ndiaye

Ruth Howison


R3RRYL


Site Observer(s)

Colourcode:

Date

Ringing site: Houten, Polder De Hoon

Name Ringer: Siebe Bonthuis



Ringnr: 2502522

Name 2nd Ringer: Marc van Leeuwen

Age (in days; 50 = juv.; 99 = ad.): 99

12-5-2016 Houten, De Meerpaal Mario Huizinga52.01975 N 5.15799 E The Netherlands



5-6-2016 Polsbroekerdam - Noordelijk Benedeneind Bas Spée52.014 N 4.939 E The Netherlands


Erva



Erva










12-3-2017 Houten, Polder De Hoon Siebe Bonthuis52.019 N 5.147 E The Netherlands






9-4-2017 Houten Marc van Leeuwen52.03333 N 5.16667 E The Netherlands















Erva



12-3-2018 Everdingen, Lek forelands Tom van Kerkhoff51.96639 N 5.16778 E The Netherlands


19-3-2018 Houten, De Meerpaal Herman Bouman52.01975 N 5.15799 E The Netherlands

19-3-2018 Houten, De Meerpaal Marc van Leeuwen52.01975 N 5.15799 E The Netherlands








Idrissa Ndiaye

Ruth Howison


R4YLLB


Site Observer(s)

Colourcode:

Date

Ringing site: Hobrede, Polder Zeevang

Name Ringer: Wim Tijsen



Ringnr: 3708105

Name 2nd Ringer: Joop Hotting

Age (in days; 50 = juv.; 99 = ad.): 10

2-4-2015 Schellinkhout, De Nek Ted van der Knaap52.621 N 5.128 E The Netherlands

24-8-2015 Koubanao Khady Gueye12.65385 N -16.09191 W Senegal

Idrissa Ndiaye

9-12-2015 Pache, Iala José Alves12.035 N -15.641 W Guinea Bissau


Erva



Erva



Khady Gueye

8-9-2016 Fanda Idrissa Ndiaye12.59001 N -16.12186 W Senegal

Khady Gueye


Erva



Erva, East



Erva



3-2-2018 Isla Mayor, Veta la Palma South Jos Hooijmeijer36.9361959 N -6.237264 Spain

Libbe Zijlstra








Ronald Messemaker


Ronald Messemaker

21-2-2018 Porto Alto, Cara Larga Siebe Bonthuis38.96167 N -8.92056 W Portugal




26-5-2018 Warder, polder De Zeevang Jurgen Rotteveel52.55667 N 5.02750 E The Netherlands

1-6-2018 Middelie, Polder de Zeevang Wim Tijsen52.55083 N 4.99389 E The Netherlands


Idrissa Ndiaye

Ruth Howison


R4YRYL


Site Observer(s)

Colourcode:

Date

Ringing site: Hobrede, Polder Zeevang

Name Ringer: Maarten Hotting



Ringnr: 3708108

Name 2nd Ringer: Wim Tijsen

Age (in days; 50 = juv.; 99 = ad.): 14

5-7-2011 Warder, polder De Zeevang Wim Tijsen52.55667 N 5.02750 E The Netherlands

12-8-2011 Pikesyl, Hisse- en Pikemar Jouke van der Meulen53.00111 N 5.57222 E The Netherlands


Alice McBride

Nathan Senner


Erva

Mario Huizinga38.91667 N -8.93333 W Portugal



16-3-2018 Uitgeest, Uitgeesterbroekpolder Kees de Jager52.52222 N 4.74000 E The Netherlands


Jos Hooijmeijer


Idrissa Ndiaye

Ruth Howison


R5BBAA


Site Observer(s)

Colourcode:

Date



Ringing Date: 1-1-2004Ringnr: BBAA

Name 2nd Ringer:

Age (in days; 50 = juv.; 99 = ad.): 99


Idrissa Ndiaye

Ruth Howison


R5BLLB


Site Observer(s)

Colourcode:

Date





Ringnr: 2502636

Name 2nd Ringer:

Age (in days; 50 = juv.; 99 = ad.): 22

22-6-2013 Lexmond, Achthoven, Lekuiterwaard Astrid Kant51.96750 N 5.01472 E The Netherlands


Jan van der Winden



Khady Gueye


Erva



Erva



Erva




Jos Hooijmeijer


R5LBYB


Site Observer(s)

Colourcode:

Date





Ringnr: 2502559

Name 2nd Ringer:

Age (in days; 50 = juv.; 99 = ad.): 99


Noordwest



Noordwest



Noordwest



Noordwest



Noordwest



Erva

Pete Potts38.91667 N -8.93333 W Portugal

Anne de Potier


Erva



Erva



Noordwest


30-3-2014 Meerkerk, put van zessen langs A27 Astrid Kant51.90944 N 4.98056 E The Netherlands

Ronald Messemaker


Noordwest



Noordwest



Erva






12-3-2015 Meerkerk, put van zessen langs A27 Ron Alblas51.90944 N 4.98056 E The Netherlands

6-4-2015 Lexmond, Polder Lakerveld Mario Huizinga51.941 N 5.018 E The Netherlands


Noordwest


Ronald Messemaker


Noordwest


25-5-2015 Lexmond, Polder Lakerveld Mario Huizinga51.941 N 5.018 E The Netherlands


Haije Valkema

Khady Gueye

21-8-2015 Dianki Haije Valkema12.87500 N -16.46278 W Senegal

Idrissa Ndiaye

Khady Gueye

25-3-2016 Kedichem, Lingeuiterwaard Astrid KantThe Netherlands

Ronald Messemaker


Noordwest


31-3-2016 Meerkerk, Zouweboezem Mario Huizinga51.92694 N 5.00056 E The Netherlands


Noordwest



Noordwest



Khady Gueye



Erva



Erva



Erva




Noordwest



Noordwest


16-6-2017 Lith, Lage Velden Gerard van de Wouw51.781 N 5.447 E The Netherlands

6-2-2018 Carregado, ricefields Kees de Jager39.029416 N -8.941725 W Portugal

9-2-2018 Vila Franca de Xira, Giganta ricefields Egbert van der Velde38.938 N -8.968 W Portugal


Erva



Noordwest



Jos Hooijmeijer


R5RLBL


Site Observer(s)

Colourcode:

Date





Ringnr: 2502596

Name 2nd Ringer: Ronald Messemaker

Age (in days; 50 = juv.; 99 = ad.): 99


Erva



Erva



Erva


Anne de Potier


30-3-2014 Acquoy, wetland Lappenheide Jouke Altenburg51.88333 N 5.13333 E The Netherlands


Erva



Noordwest



Noordwest



Noordwest



Erva



Erva



Noordwest



Noordwest




Noordwest


Ronald Messemaker


Erva

Jos Hooijmeijer38.91667 N -8.93333 W Portugal


5-3-2017 Meerkerk, put van zessen langs A27 Tom van Kerkhoff51.90944 N 4.98056 E The Netherlands







Idrissa Ndiaye

Ruth Howison


R5YLBB


Site Observer(s)

Colourcode:

Date

Ringing site: Berkel en Rodenrijs, Bergboezem

Name Ringer: Willem Brandhorst



Ringnr: 2502662

Name 2nd Ringer:

Age (in days; 50 = juv.; 99 = ad.): 99


Nathan Senner


Alice McBride


Nathan Senner

Alice McBride


Nathan Senner

Alice McBride


Nathan Senner


Alice McBride


Nathan Senner


Alice McBride


Mo Verhoeven


Mo Verhoeven

Alice McBride


Alice McBride

Nathan Senner


15-2-2016 Yelbes Haije Valkema38.96944 N -6.00167 W Spain


19-3-2016 Berkel en Rodenrijs, Bergboezem Willem Brandhorst51.98139 N 4.43639 E The Netherlands


Khady Gueye


Wiebe Kaspersma



7-2-2017 Santa Amalia Wiebe Kaspersma39.00389 N -5.98611 W Spain




9-2-2017 Hernan Cortes - Medellín Jos Hooijmeijer39.006 N -5.943 W Spain


2-3-2017 Sint-Margriete Walter Hamelinck51.25000 N 3.53333 E Belgium


19-3-2017 Berkel en Rodenrijs, Bergboezem Jeroen Bes51.98139 N 4.43639 E The Netherlands

22-3-2017 Berkel en Rodenrijs, Bergboezem Jan Vegelin51.98139 N 4.43639 E The Netherlands

24-3-2017 Berkel en Rodenrijs, Bergboezem Jan Vegelin51.98139 N 4.43639 E The Netherlands


17-4-2017 Berkel en Rodenrijs, Bergboezem Susanne Kuijpers51.98139 N 4.43639 E The Netherlands



16-2-2018 Santa Amalia Jacob de Vries39.00389 N -5.98611 W Spain

16-2-2018 Santa Amalia Mario Huizinga39.00389 N -5.98611 W Spain


Jos Hooijmeijer


R6YYLL


Site Observer(s)

Colourcode:

Date

Ringing site: Deinum, Polder Deinum

Name Ringer: Allix Brenninkmeijer



Ringnr: 3611919

Name 2nd Ringer: Andrea Kuiper-Vos

Age (in days; 50 = juv.; 99 = ad.): 99

20-5-2009 Deinum, Polder Deinum (Visser) Yde van der Heide53.19278 N 5.74278 E The Netherlands

31-5-2009 Deinum, Polder Deinum (Visser) Yde van der Heide53.19278 N 5.74278 E The Netherlands

15-2-2010 Porto Alto, Ze do Pinho Ysbrand Galama38.96222 N -8.89167 W Portugal

16-2-2010 Samora Correia, Samora Correia ricefields Job ten Horn38.94194 N -8.88528 W Portugal



7-4-2010 Deinum, Polder Deinum (Visser) Leonie Raijmakers53.19278 N 5.74278 E The Netherlands

16-4-2010 Deinum, Polder Deinum (Visser) Leonie Raijmakers53.19278 N 5.74278 E The Netherlands

27-4-2010 Deinum, Polder Deinum (Visser) Marten Sikkema53.19278 N 5.74278 E The Netherlands

Leonie Raijmakers

27-4-2010 Ritsumazijl, Ritsumazijl Noord Marten Sikkema53.20444 N 5.74167 E The Netherlands

Leonie Raijmakers

22-6-2010 Workum, Workumermeer Petra de Goeij52.99278 N 5.46389 E The Netherlands

22-6-2010 Workum, Workumermeer Anneke Rippen52.99278 N 5.46389 E The Netherlands

23-6-2010 Gaast, Jouke Sjoerdspolder Theunis Piersma53.00361 N 5.41972 E The Netherlands


24-6-2010 Gaast, Jouke Sjoerdspolder Petra de Goeij53.00361 N 5.41972 E The Netherlands


Erva

Niko Groen38.91667 N -8.93333 W Portugal

Jan van der Geld


Erva

Stef Waasdorp38.91667 N -8.93333 W Portugal

6-6-2011 Blessum Anneke Zeinstra53.20000 N 5.70000 E The Netherlands

8-7-2011 Workum, Workumerbinnenwaard-Noord Theunis Piersma52.99611 N 5.41139 E The Netherlands


14-2-2012 Zambujal Gjerryt Hoekstra38.57306 N -8.73472 W Portugal

14-2-2012 Zambujal Haije Valkema38.57306 N -8.73472 W Portugal

12-4-2012 Ritsumazijl, Ritsumazijl Noord Hendriekus Algra53.20444 N 5.74167 E The Netherlands

1-6-2012 Blessum Anneke Zeinstra53.20000 N 5.70000 E The Netherlands


Haije Valkema


Erva


Haije Valkema


Erva


Pieter Breeuwsma


Erva



Erva



Erva




Erva


3-4-2013 Leidschendam, Starrevaart Sjaak Schilperoort52.10000 N 4.43333 E The Netherlands


Erva



24-11-2014 Blom Jos Hooijmeijer11.99556 N -15.79361 W Guinea Bissau

Jan van der Kamp

Haije Valkema


Erva



Erva



Erva





Erva



Jos Hooijmeijer

9-12-2015 Blom Jos Hooijmeijer11.99556 N -15.79361 W Guinea Bissau

Haije Valkema

Hamilton Monteiro

20-6-2016 Jeth Gjerryt Hoekstra53.124 N 5.683 E The Netherlands

Ysbrand Galama


Erva



Erva




Erva



Erva, East



Erva


13-7-2017 Lauwersoog - Achter de Zwarten Mo Verhoeven53.387650 N 6.199021 E The Netherlands


Idrissa Ndiaye

Ruth Howison


Y1YRBR


Site Observer(s)

Colourcode:

Date





Ringnr: 3554078

Name 2nd Ringer:

Age (in days; 50 = juv.; 99 = ad.): 99

1-6-2004 Makkum, Makkumer Zuidwaard Jos Hooijmeijer53.04472 N 5.38722 E The Netherlands

1-6-2005 Workum, Workumermeer Jos Hooijmeijer52.99278 N 5.46389 E The Netherlands

Niko Groen (RUG)

10-8-2005 Isla Mayor, Entremuros (Parque Natural

de Doñana)

José Luís Arroyo37.08611 N -6.26028 W Spain

10-4-2006 Workum, Workumerbinnenwaard-Noord Christiaan Both52.99611 N 5.41139 E The Netherlands

9-6-2006 Workum, Workumerbinnenwaard-Noord Pedro Lourenço52.99611 N 5.41139 E The Netherlands

Elzemiek Geuverink

1-2-2007 Zambujal Pedro Lourenço38.57306 N -8.73472 W Portugal

Freek Mandema

2-2-2007 Zambujal Pedro Lourenço38.57306 N -8.73472 W Portugal

Freek Mandema

Theunis Piersma

31-5-2007 Workum, Workumerbinnenwaard-Zuid Rosemarie Kentie52.97917 N 5.41917 E The Netherlands

5-6-2007 Koudum, Polder De Samenvoeging Rosemarie Kentie52.91000 N 5.46139 E The Netherlands

Valentijn van den Brink

24-2-2008 Samora Correia, Samora Correia ricefields Pete Potts38.94194 N -8.88528 W Portugal

28-3-2008 Parrega Oost, Dedgum, Hieslum Ysbrand Galama53.01361 N 5.48611 E The Netherlands

3-3-2009 Aigues Mortes, La Tortue Dirk Tanger43.55528 N 4.33611 E France

Onno Steendam

Rene Faber

22-3-2009 Gaast, Jouke Sjoerdspolder Rinkje van der Zee53.00361 N 5.41972 E The Netherlands



Lucie Schmaltz

2-7-2009 Palencia, Laguna de Boada de Campos Carlos Zumalacárregui Martínez41.96667 N -4.85000 W Spain

3-7-2009 Palencia, Laguna de Boada de Campos Carlos Zumalacárregui Martínez41.96667 N -4.85000 W Spain


Soal

Krijn Trimbos (RUG)52.98056 N 5.40778 E The Netherlands


25-3-2011 Gaast, Jouke Sjoerdspolder Dirk Kuiken53.00361 N 5.41972 E The Netherlands

6-4-2011 Workum, Workumerbinnenwaard-Noord Willem Stilma52.99611 N 5.41139 E The Netherlands

25-3-2012 Workum, Workumerbuitenwaard-Noord Rinkje van der Zee52.99222 N 5.40167 E The Netherlands

26-2-2013 El Palmar, El Campot, Parque Natural de

L'Albufera

Rene Faber39.31444 N -0.34000 W Spain

Marten Sikkema

26-2-2013 Les Gavines, Racó de l'Olla, Parque

Natural de L'Albufera


Marten Sikkema


L'Albufera

Marten Sikkema39.31444 N -0.34000 W Spain

Rene Faber



Jos Hooijmeijer


Y3LBYB


Site Observer(s)

Colourcode:

Date

Ringing site: Gaast, Jouke Sjoerdspolder

Name Ringer: João Guilherme



Ringnr: 3652951

Name 2nd Ringer: Robbie Watt

Age (in days; 50 = juv.; 99 = ad.): 99

12-6-2008 Gaast, Jouke Sjoerdspolder Robbie Watt53.00361 N 5.41972 E The Netherlands

João Guilherme


25-3-2009 Gaast, Jouke Sjoerdspolder Pedro Lourenço53.00361 N 5.41972 E The Netherlands

14-4-2009 Gaast, Jouke Sjoerdspolder Pedro Lourenço53.00361 N 5.41972 E The Netherlands

18-6-2009 Workum, Workumermeer Rosemarie Kentie52.99278 N 5.46389 E The Netherlands





19-2-2010 Palazuelo Jos Hooijmeijer39.11583 N -5.73778 W Spain

Libbe Zijlstra

24-5-2010 Gaast, Jouke Sjoerdspolder Rosemarie Kentie53.00361 N 5.41972 E The Netherlands


17-6-2010 Gaast, Jouke Sjoerdspolder Rene Faber53.00361 N 5.41972 E The Netherlands

Petra de Goeij

Rinkje van der Zee




Rinkje van der Zee

Rene Faber


Rinkje van der Zee

Rene Faber





13-7-2010 Workum, Workumerbinnenwaard-Noord Willem Stilma52.99611 N 5.41139 E The Netherlands

30-1-2011 Vivares Jos Hooijmeijer39.08333 N -5.88722 W Spain

Rocío Marquez Ferrando


Erva

Job ten Horn38.91667 N -8.93333 W Portugal


Soal

Theunis Piersma52.98056 N 5.40778 E The Netherlands

Martin Bulla



Frank Visbeen


4-2-2012 Hernan Cortes Niko Groen39.03333 N -5.93333 W Spain

Gerrit Gerritsen

4-2-2012 Hernan Cortes Niko Groen39.03333 N -5.93333 W Spain

Gerrit Gerritsen


12-2-2012 Hernan Cortes Jos Hooijmeijer39.03333 N -5.93333 W Spain

Tom Jager

26-2-2012 Porto Alto, Ruivo Dirk Tanger38.96667 N -8.90194 W Portugal

26-3-2012 Gaast, Jouke Sjoerdspolder Sytse-Jan Wouda53.00361 N 5.41972 E The Netherlands

3-5-2012 Gaast, Jouke Sjoerdspolder Rienk Jelle Hibma (RUG)53.00361 N 5.41972 E The Netherlands

17-7-2012 Workum, Workumermeer Jouke van der Meulen52.99278 N 5.46389 E The Netherlands

14-3-2013 Woudsend, Indijk Gerrit Gerritsen52.95028 N 5.60722 E The Netherlands

24-3-2013 Waverveen, Polder Groot-Mijdrecht Noord Frank van der Meer52.23583 N 4.90472 E The Netherlands

Robert van der Meer

Peter van der Meer

26-5-2013 Gaast, Jouke Sjoerdspolder Merlijn de Graaf53.00361 N 5.41972 E The Netherlands


April Fikenscher

8-6-2013 Workum, Workumermeer Rene Faber52.99278 N 5.46389 E The Netherlands


Gjerryt Hoekstra

19-6-2013 Workum, Workumermeer Atser Sybrandy (RUG)52.99278 N 5.46389 E The Netherlands


7-10-2013 Isla Mayor, Veta la Palma Hendriekus Algra36.97083 N -6.23500 W Spain


Alice McBride


Alice McBride

Mo Verhoeven



Alice McBride


17-4-2014 Workum, Workumerbuitenwaard-Noord Dolf van der Gaag52.99222 N 5.40167 E The Netherlands


Mo Verhoeven

Alice McBride


Mo Verhoeven

Nathan Senner


Alice McBride

Mo Verhoeven


Alice McBride

Nathan Senner


Jelle Loonstra

Alice McBride


Alice McBride

Nathan Senner

7-2-2015 Medellín Mo Verhoeven38.98861 N -5.96056 W Spain

Alice McBride

Nathan Senner


Erva



Alice McBride

Mo Verhoeven


Nathan Senner

Mo Verhoeven


Alice McBride

Mo Verhoeven

6-3-2015 Ouderkerk a/d Amstel, Holendrechter en

Bullewijkerpolder, Landje van Geijsel

Anton Duijnhouwer52.28167 N 4.93028 E The Netherlands



Frits Bos52.28167 N 4.93028 E The Netherlands





7-2-2016 Yelbes Rosemarie Kentie38.96944 N -6.00167 W Spain








4-2-2017 Casar de Miajadas Egbert van der Velde39.13333 N -5.85000 W Spain

Wiebe Kaspersma



25-3-2017 Workum, Workumerbuitenwaard-Noord Alice McBride52.99222 N 5.40167 E The Netherlands


Alice McBride


17-6-2017 Durgerdam, IJdoornpolder Kees de Jager52.37944 N 5.01028 E The Netherlands

5-2-2018 Almoharin Pipe Abad39.15000 N -6.03333 W Spain

7-2-2018 Hernan Cortes - Medellín Pipe Abad39.006 N -5.943 W Spain


Libbe Zijlstra










Idrissa Ndiaye

Ruth Howison


Y3LLYL


Site Observer(s)

Colourcode:

Date





Ringnr: 1433320

Name 2nd Ringer: Feline Stellaard

Age (in days; 50 = juv.; 99 = ad.): 15

18-6-2008 Workum, Workumerbinnenwaard-Noord Freek Koopmans52.99611 N 5.41139 E The Netherlands

Hessel Klijn

26-5-2009 Workum, Workumerbinnenwaard-Zuid Hacen Mohamed El Hacen52.97917 N 5.41917 E The Netherlands

Petra de Goeij

27-5-2009 Koudum, Haanmeer Rosemarie Kentie52.92333 N 5.43500 E The Netherlands

Katharine Bowgen


Lucie Schmaltz

4-5-2010 Workum, Workumerbinnenwaard-Zuid Petra de Goeij52.97917 N 5.41917 E The Netherlands

Mo Verhoeven



Marten Sikkema (RUG)

26-5-2011 Workum, Workumerbuitenwaard-Noord Rocío Marquez Ferrando52.99222 N 5.40167 E The Netherlands

Albert Allema (RUG)

23-1-2013 El Rocio, Lucio de Mari Lopez Tom Jager37.04833 N -6.30472 W Spain

23-1-2013 El Rocio, Lucio de Mari Lopez Rocío Marquez Ferrando37.04833 N -6.30472 W Spain


5-2-2013 Vivares Nathan Senner39.08333 N -5.88722 W Spain

Mo Verhoeven



25-4-2013 Workum, Workumerbinnenwaard-Zuid Berber de Jong52.97917 N 5.41917 E The Netherlands






27-6-2014 Workum, Workumerbinnenwaard-Zuid Rinkje van der Zee52.97917 N 5.41917 E The Netherlands







18-6-2016 Gaast, Jouke Sjoerdspolder Sofia Briosa e Scheltinga53.00361 N 5.41972 E The Netherlands




28-10-2016 Isla Mayor, Veta la Palma Ysbrand Galama36.97083 N -6.23500 W Spain




7-2-2018 Isla Mayor, rice fields Jan Kramer37.13944 N -6.18944 W Spain

Rennie Kramer




Jos Hooijmeijer


Y3RBLL


Site Observer(s)

Colourcode:

Date





Ringnr: 3654148

Name 2nd Ringer:

Age (in days; 50 = juv.; 99 = ad.): 99




18-6-2009 Koudum, Haanmeer Pedro Lourenço52.92333 N 5.43500 E The Netherlands







21-3-2011 Stavoren, Zuidermeerpolder Lucie Schmaltz52.87611 N 5.38361 E The Netherlands



Erva





Erva




Idrissa Ndiaye

Ruth Howison


Y3RLBL


Site Observer(s)

Colourcode:

Date

Ringing site: Workum, Workumerbuitenwaard-Noord




Ringnr: 1434110

Name 2nd Ringer:

Age (in days; 50 = juv.; 99 = ad.): 10

6-4-2011 Gaast, Polder Gaast-Ferwoude Jos Hooijmeijer53.01806 N 5.43194 E The Netherlands

Ysbrand Galama



6-7-2011 Pikesyl, Hisse- en Pikemar Rene Faber53.00111 N 5.57222 E The Netherlands



18-3-2012 Workum, Workumerbinnenwaard-Noord Raf Vervoort52.99611 N 5.41139 E The Netherlands


22-6-2012 Workum, Workumermeer Rienk Jelle Hibma (RUG)52.99278 N 5.46389 E The Netherlands



Erva



Erva



Erva



13-4-2013 Workum, Workumerbinnenwaard-Noord Maarten Hotting52.99611 N 5.41139 E The Netherlands

Rene Faber



5-7-2013 Workum, Workumerbinnenwaard-Noord Egbert van der Velde52.99611 N 5.41139 E The Netherlands

9-7-2013 Workum, Workumerbuitenwaard-Noord Jos Hooijmeijer52.99222 N 5.40167 E The Netherlands

Sietske Rintjema

Chris Bakker

2-8-2013 Lelystad, Oostvaardersplassen, kijkhut De

Zeearend en Wigbels' Eiland

Gerrit Gerritsen52.44722 N 5.39917 E The Netherlands


Tom Jager


23-5-2014 Workum, Workumerbinnenwaard-Noord Dolf van der Gaag52.99611 N 5.41139 E The Netherlands

8-6-2014 Workum, Workumerbuitenwaard-Noord Jan Kramer52.99222 N 5.40167 E The Netherlands

11-7-2014 Workum, Workumerbuitenwaard-Noord Jelle Loonstra52.99222 N 5.40167 E The Netherlands


Erva



Erva


26-3-2015 Workum, Polder de Beveiliging Ysbrand Galama52.99111 N 5.44694 E The Netherlands



Erva




Erva







Erva



4-4-2017 Workum, Workumerbinnenwaard-Noord Mario Huizinga52.99611 N 5.41139 E The Netherlands


Eelco Brandenburg


Alice McBride


8-2-2018 Porto Alto, Giganta ricefields, Cardal Kees de Jager38.921737 N -8.977164 W Portugal


Mo Verhoeven




Jos Hooijmeijer


Y3YBRY


Site Observer(s)

Colourcode:

Date





Ringnr: 3654108

Name 2nd Ringer: Merlijn de Graaf

Age (in days; 50 = juv.; 99 = ad.): 99


Valentijn van den Brink


Ysbrand Galama

24-3-2008 Workum, Polder de Beveiliging Theunis Piersma52.99111 N 5.44694 E The Netherlands

10-6-2008 Workum, Workumermeer Pedro Lourenço52.99278 N 5.46389 E The Netherlands


27-3-2009 Gaast, Polder Gaast-Ferwoude Marianne McGhie53.01806 N 5.43194 E The Netherlands

15-6-2009 Workum, Workumermeer Niko Groen (RUG)52.99278 N 5.46389 E The Netherlands



1-4-2010 Workum, Polder de Beveiliging Carola Poley52.99111 N 5.44694 E The Netherlands

Anneke Rippen



20-6-2010 Workum, Workumermeer Lucie Schmaltz52.99278 N 5.46389 E The Netherlands




29-3-2011 Workum, Polder de Beveiliging Niko Groen (RUG)52.99111 N 5.44694 E The Netherlands

17-6-2011 Workum, Workumermeer Theunis Piersma52.99278 N 5.46389 E The Netherlands

23-3-2012 Workum, Workumermeer Haije Valkema52.99278 N 5.46389 E The Netherlands

Egbert van der Velde



Haije Valkema

20-3-2013 Nijhuizum, Monnikeburenpolder Zuid Ysbrand Galama52.98611 N 5.48861 E The Netherlands

9-4-2013 Nijhuizum, Monnikeburenpolder Zuid Jouke van der Meulen52.98611 N 5.48861 E The Netherlands





27-3-2014 Workum, Polder de Beveiliging Rene Faber (RUG)52.99111 N 5.44694 E The Netherlands

5-6-2014 Workum, Workumerbinnenwaard-Zuid Dolf van der Gaag52.97917 N 5.41917 E The Netherlands





Eric ten Cate





26-6-2016 Workum, Workumermeer Guillaume Senterre52.99278 N 5.46389 E The Netherlands



Jos Hooijmeijer


Y3YYLL


Site Observer(s)

Colourcode:

Date





Ringnr: 3652904

Name 2nd Ringer: João Guilherme

Age (in days; 50 = juv.; 99 = ad.): 99

20-2-2008 Samora Correia, Samora Correia ricefields Tim Walker38.94194 N -8.88528 W Portugal

8-6-2008 Gaast, Jouke Sjoerdspolder João Guilherme53.00361 N 5.41972 E The Netherlands

Robbie Watt

24-3-2009 Gaast, Polder Gaast-Ferwoude Pedro Lourenço53.01806 N 5.43194 E The Netherlands

9-4-2009 Gaast, Polder Gaast-Ferwoude Anneke Zeinstra53.01806 N 5.43194 E The Netherlands

9-5-2009 Gaast, Polder Kooihuizen-Zuid Theunis Piersma53.02667 N 5.42667 E The Netherlands

4-6-2009 Ferwoude, Fallingabuurster- en

Aaltjemeerpolder

Katharine Bowgen53.00639 N 5.44611 E The Netherlands

Pedro Lourenço

13-6-2009 Workum, Workumerbinnenwaard-Noord Gerard Minnema52.99611 N 5.41139 E The Netherlands



15-6-2010 Workum, Workumerbinnenwaard-Zuid Anneke Rippen52.97917 N 5.41917 E The Netherlands

13-2-2011 Porto Alto, Ze do Pinho Dirk Tanger38.96222 N -8.89167 W Portugal

26-5-2011 Gaast, Jouke Sjoerdspolder Jos Hooijmeijer53.00361 N 5.41972 E The Netherlands



26-3-2012 Workum, Workumerbuitenwaard-Noord Rienk Jelle Hibma (RUG)52.99222 N 5.40167 E The Netherlands


15-6-2012 Exmorra, Parregaastermeer Rienk Jelle Hibma (RUG)53.03194 N 5.45361 E The Netherlands



7-4-2013 Gaast, Polder Gaast-Ferwoude Sietse Bernardus53.01806 N 5.43194 E The Netherlands


Jos Hooijmeijer


13-4-2013 Gaast, Polder Gaast-Ferwoude Maarten Hotting53.01806 N 5.43194 E The Netherlands

Rene Faber

14-4-2013 Gaast, Polder Gaast-Ferwoude Rene Faber53.01806 N 5.43194 E The Netherlands

15-4-2013 Gaast, Polder Gaast-Ferwoude April Fikenscher53.01806 N 5.43194 E The Netherlands

15-4-2013 Gaast, Polder Gaast-Ferwoude Merlijn de Graaf53.01806 N 5.43194 E The Netherlands









7-4-2015 Gaast, Polder Gaast-Ferwoude Jan Kramer53.01806 N 5.43194 E The Netherlands





Guillaume Senterre

11-6-2016 Gaast, Polder Gaast-Ferwoude Guillaume Senterre53.01806 N 5.43194 E The Netherlands


Erva


20-3-2017 Gaast, Polder Kooihuizen-Zuid Age Hulder53.02667 N 5.42667 E The Netherlands

28-4-2017 Gaast, Polder Kooihuizen-Zuid Age Hulder53.02667 N 5.42667 E The Netherlands

9-11-2017 Guembeul, Réserve Spéciale de Faune de

Guembeul

Jos Hooijmeijer15.929 N -16.463 W Senegal

Tom Jager

Pope Yamar Niang

27-3-2018 It Heidenskip, Ursulapolder Riemer Miedema52.95889 N 5.46667 E The Netherlands

9-6-2018 Gaast, Polder Kooihuizen-Zuid Tim Oortwijn53.02667 N 5.42667 E The Netherlands


Mo Verhoeven



Idrissa Ndiaye

Ruth Howison


Y4BLBY


Site Observer(s)

Colourcode:

Date

Ringing site: Exmorra, Parregaastermeer

Name Ringer: Theunis Piersma



Ringnr: 3659751

Name 2nd Ringer:

Age (in days; 50 = juv.; 99 = ad.): 99

3-6-2010 Exmorra, Parregaastermeer Petra de Goeij53.03194 N 5.45361 E The Netherlands


9-4-2011 Exmorra, Parregaastermeer Petra de Goeij53.03194 N 5.45361 E The Netherlands

8-3-2012 Oudega, Sypset Jouke van der Meulen53.00028 N 5.53556 E The Netherlands

10-3-2012 Parrega Oost, Dedgum, Hieslum Haije Valkema53.01361 N 5.48611 E The Netherlands


Nathan Senner

25-3-2013 Idzegahuizum, Polder Kooihuizen-Noord Dirk Kuiken53.04667 N 5.41806 E The Netherlands

27-3-2013 Idzegahuizum, Polder Kooihuizen-Noord Merlijn de Graaf53.04667 N 5.41806 E The Netherlands

2-4-2013 Exmorra, Parregaastermeer Merlijn de Graaf53.03194 N 5.45361 E The Netherlands

24-4-2013 Nijhuizum, Monnikeburenpolder Atser Sybrandy (RUG)52.99278 N 5.49972 E The Netherlands

27-6-2013 Parrega, Ritseburen Jorge Gutiérrez53.01722 N 5.47333 E The Netherlands

27-6-2013 Parrega, Ritseburen Merlijn de Graaf53.01722 N 5.47333 E The Netherlands


Erva




Erva


Wim Tijsen


Erva



Erva



Erva



Erva




Erva



Erva



Erva



Erva




Teade de Boer




Haije Valkema




Haije Valkema


21-2-2016 Medellín Fernando Yuste38.98861 N -5.96056 W Spain

24-3-2016 Exmorra, Parregaastermeer Guillaume Senterre53.03194 N 5.45361 E The Netherlands

Sofia Briosa e Scheltinga


Mélodie Tort


Drew Bingrun

14-2-2017 Valdehornillos Jan Vegelin39.05028 N -5.97583 W Spain

30-3-2017 Exmorra, Parregaastermeer Age Hulder53.03194 N 5.45361 E The Netherlands


22-3-2018 Gaast, Polder Kooihuizen-Zuid Henri Zomer53.02667 N 5.42667 E The Netherlands

4-6-2018 Exmorra, Parregaastermeer Tim Oortwijn53.03194 N 5.45361 E The Netherlands


Idrissa Ndiaye

Ruth Howison


Y4LLRB


Site Observer(s)

Colourcode:

Date





Ringnr: 1433186

Name 2nd Ringer: Allert Bijleveld

Age (in days; 50 = juv.; 99 = ad.): 11


9-4-2010 Koudum, Haanmeer Carola Poley52.92333 N 5.43500 E The Netherlands


Brett Sandercock


13-2-2011 Porto Alto, Ze do Pinho Rene Faber38.96222 N -8.89167 W Portugal

17-3-2011 Molkwerum, Noorderpolder Sam Jones52.91139 N 5.41778 E The Netherlands

16-6-2012 Nijhuizum, Monnikeburenpolder Zuid Jouke van der Meulen52.98611 N 5.48861 E The Netherlands


Erva



Erva

Marten Sikkema38.91667 N -8.93333 W Portugal

9-3-2013 Koudum, Haanmeer Marta Lomas Vega52.92333 N 5.43500 E The Netherlands

Matt Slaymaker

Teresa Montras


15-6-2013 Abbega, Rige, Polder It Marlân Atser Sybrandy (RUG)53.03639 N 5.57306 E The Netherlands






19-6-2014 El Rocio, Marismas de El Rocío (Parque

Nacional de Doñana)

Rubén Rodríguez Olivares37.12833 N -6.50528 W Spain


Erva



Erva



Erva



Erva



Erva





16-3-2015 Molkwerum, De Flait Marycha Franken52.90111 N 5.41694 E The Netherlands



Mo Verhoeven


Erva




Iris Bontekoe



Erva


17-3-2017 Koudum, Haanmeer Amandine Vallee52.92333 N 5.43500 E The Netherlands

12-4-2017 Koudum, Haanmeer Florian Landstra52.92333 N 5.43500 E The Netherlands

26-5-2017 Koudum, Haanmeer Anna Hatsagi52.92333 N 5.43500 E The Netherlands







9-6-2018 Hindeloopen, Gellehuisterpolder Mo Verhoeven52.92972 N 5.42778 E The Netherlands

Jelle Loonstra


16-6-2018 It Heidenskip, Polder Aent Lieuwes Wiebe Kaspersma52.93333 N 5.48361 E The Netherlands


Idrissa Ndiaye

Ruth Howison


Y4LLRL


Site Observer(s)

Colourcode:

Date

Ringing site: Koudum, Polder De Oosterling

Name Ringer: Petra de Goeij



Ringnr: 1433442

Name 2nd Ringer: Lucie Schmaltz

Age (in days; 50 = juv.; 99 = ad.): 1

30-5-2008 Koudum, Polder De Oosterling Rosemarie Kentie52.93444 N 5.45778 E The Netherlands

Petra de Goeij


Jos Hooijmeijer


Y4LRYB


Site Observer(s)

Colourcode:

Date





Ringnr: 3654021

Name 2nd Ringer: Allert Bijleveld

Age (in days; 50 = juv.; 99 = ad.): 18


20-4-2011 Workum, Workumermeer Niko Groen (RUG)52.99278 N 5.46389 E The Netherlands

10-10-2013 Sanlúcar de Barrameda, Salinas de

Bonanza, Parque Natural de Doñana

Hendriekus Algra36.86667 N -6.33333 W Spain



Teade de Boer



Jos Hooijmeijer


Y4LYRB


Site Observer(s)

Colourcode:

Date

Ringing site: It Heidenskip, Ursulapolder




Ringnr: 3659798

Name 2nd Ringer: Gjerryt Hoekstra

Age (in days; 50 = juv.; 99 = ad.): 99

22-2-2012 Granho, Foros de Benfica, Paul da Casa

do Cadaval


Dirk Tanger

24-2-2012 Porto Alto, Ruivo Rene Faber38.96667 N -8.90194 W Portugal

24-2-2012 Porto Alto, Ruivo Rene Faber38.96667 N -8.90194 W Portugal


7-3-2012 Workum, Workumer Nieuwland Gjerryt Hoekstra52.95500 N 5.43194 E The Netherlands


20-4-2012 Koudum, Haanmeer Niels Bot52.92333 N 5.43500 E The Netherlands


21-6-2012 Workum, Workumermeer Rinkje van der Zee52.99278 N 5.46389 E The Netherlands






8-7-2013 't Zand Fred Visscher52.50111 N 4.74750 E The Netherlands

10-7-2013 De Stolpen, polder Zijpe Wim Tijsen52.81667 N 4.73333 E The Netherlands

16-7-2013 De Stolpen, polder Zijpe Wim Tijsen52.81667 N 4.73333 E The Netherlands


Erva



20-6-2014 Workum, Workumermeer Rene Faber (RUG)52.99278 N 5.46389 E The Netherlands



24-6-2014 Koudum, Haanmeer Rene Faber (RUG)52.92333 N 5.43500 E The Netherlands





Erva






18-6-2015 Warns, Kampenspolder Marycha Franken52.87472 N 5.39833 E The Netherlands




Mo Verhoeven



21-3-2016 It Heidenskip, Ursulapolder Ysbrand Galama52.95889 N 5.46667 E The Netherlands


18-3-2017 Workum, Workumer Nieuwland Jan Kramer52.95500 N 5.43194 E The Netherlands

Eus de Groot


Soal

Alice McBride52.98056 N 5.40778 E The Netherlands


23-6-2017 Kleine Gaastmeer, Kaappolder West Tim van der Meer52.97444 N 5.50528 E The Netherlands



Anna Hatsagi

22-7-2017 Wieringerwerf, Wieringermeer,

Oosterkwelweg


23-7-2017 Wieringerwerf, Wieringermeer,

Oosterkwelweg






Idrissa Ndiaye

Ruth Howison


Y5BBLB


Site Observer(s)

Colourcode:

Date





Ringnr: 2504809


Age (in days; 50 = juv.; 99 = ad.): 99

13-6-2013 Molkwerum, Noorderpolder Jorge Gutiérrez52.91139 N 5.41778 E The Netherlands





Mo Verhoeven




West


13-6-2015 Gaast, Polder Kooihuizen-Zuid Emma Penning53.02667 N 5.42667 E The Netherlands

24-8-2015 Koubanao Haije Valkema12.65385 N -16.09191 W Senegal

Jos Hooijmeijer



25-3-2016 Koudum, Polder Het Hooge Land Mario Huizinga52.92806 N 5.44778 E The Netherlands




6-4-2017 Koudum, Haanmeer Amandine Vallee52.92333 N 5.43500 E The Netherlands










Mo Verhoeven


Eelco Brandenburg







Jos Hooijmeijer


Y5BYLR


Site Observer(s)

Colourcode:

Date





Ringnr: 2504844

Name 2nd Ringer:

Age (in days; 50 = juv.; 99 = ad.): 1


Mo Verhoeven




20-4-2015 Workum, Workumerbinnenwaard-Noord Anneke Zeinstra52.99611 N 5.41139 E The Netherlands

13-5-2015 Workum, Workumerbinnenwaard-Noord Dirk Kuiken52.99611 N 5.41139 E The Netherlands

21-2-2016 El Palmar, Tancat de Baldovi, Parque




L'Albufera





24-2-2018 Carrasqueira Siebe Bonthuis38.40222 N -8.76028 W Portugal

28-4-2018 Workum, Workumerbinnenwaard-Noord Ofra Carmi52.99611 N 5.41139 E The Netherlands



Jos Hooijmeijer


Y5LLBY


Site Observer(s)

Colourcode:

Date





Ringnr: 1443341

Name 2nd Ringer:

Age (in days; 50 = juv.; 99 = ad.): 9

17-7-2012 Koudum, Haanmeer Rene Faber52.92333 N 5.43500 E The Netherlands

17-7-2012 Workum, Workumermeer Jouke van der Meulen52.99278 N 5.46389 E The Netherlands

31-3-2013 Reninge, Polders Lo-Reninge Koen Devos50.96806 N 2.78417 E Belgium


14-1-2014 Isla Mayor, Veta la Palma Rene Faber36.97083 N -6.23500 W Spain

Jouke Altenburg


Jouke Altenburg


3-2-2014 Isla Mayor, Veta la Palma Tom Jager36.97083 N -6.23500 W Spain



Tom Jager

25-3-2014 Gaast, Polder Gaast-Ferwoude Rosemarie Kentie53.01806 N 5.43194 E The Netherlands




20-6-2014 Gaast, Jouke Sjoerdspolder Rene Faber (RUG)53.00361 N 5.41972 E The Netherlands

Dirk Tanger



7-4-2015 Gaast, Polder Gaast-Ferwoude Jan Kramer53.01806 N 5.43194 E The Netherlands







11-6-2016 Gaast, Polder Gaast-Ferwoude Guillaume Senterre53.01806 N 5.43194 E The Netherlands




29-3-2017 Ferwoude, Fallingabuurster- en

Aaltjemeerpolder

Age Hulder53.00639 N 5.44611 E The Netherlands

25-5-2017 Gaast, Jouke Sjoerdspolder Jos Hooijmeijer53.00361 N 5.41972 E The Netherlands


16-6-2017 Workum, Workumerbinnenwaard-Noord Age Hulder52.99611 N 5.41139 E The Netherlands

Anna Hatsagi


4-6-2018 Gaast, Polder Gaast-Ferwoude Tim Oortwijn53.01806 N 5.43194 E The Netherlands

18-6-2018 Gaast, Polder Gaast-Ferwoude Wiebe Kaspersma53.01806 N 5.43194 E The Netherlands

Tim Oortwijn

20-6-2018 Gaast, Polder Gaast-Ferwoude Tim Oortwijn53.01806 N 5.43194 E The Netherlands



Jos Hooijmeijer


Y5RLLR


Site Observer(s)

Colourcode:

Date





Ringnr: 1433826

Name 2nd Ringer:

Age (in days; 50 = juv.; 99 = ad.): 1

15-6-2011 It Heidenskip, Polder De Vooruitgang Ysbrand Galama52.94278 N 5.48694 E The Netherlands



9-5-2013 Koudum, Polder De Samenvoeging Jorge Gutiérrez52.91000 N 5.46139 E The Netherlands

21-3-2014 It Heidenskip, Polder Aent Lieuwes Rene Faber (RUG)52.93333 N 5.48361 E The Netherlands

12-4-2014 It Heidenskip, Polder Aent Lieuwes Jan Kramer52.93333 N 5.48361 E The Netherlands



16-11-2014 Baila, Baila mudflats Jan van der Kamp12.88894 N 016.37945 W Senegal

8-3-2015 Dordrecht, Biesbosch,Tongplaat Hans Gebuis51.74556 N 4.70000 E The Netherlands


Eric ten Cate


West








16-6-2015 Idzegea, De Geeuw Haije Valkema52.98417 N 5.56722 E The Netherlands






22-3-2016 It Heidenskip, Polder Aent Lieuwes Guillaume Senterre52.93333 N 5.48361 E The Netherlands




Idrissa Ndiaye

Ruth Howison




22-3-2017 It Heidenskip, Polder Aent Lieuwes Anneke Zeinstra52.93333 N 5.48361 E The Netherlands



5-11-2017 Baila, Baila mudflats Idrissa Ndiaye12.88894 N 016.37945 W Senegal





16-3-2018 It Heidenskip, Polder Aent Lieuwes Marycha Franken52.93333 N 5.48361 E The Netherlands

8-4-2018 Koudum, Polder De Samenvoeging Libbe Zijlstra52.91000 N 5.46139 E The Netherlands

14-4-2018 It Heidenskip, Polder De Vooruitgang Jan Kramer52.94278 N 5.48694 E The Netherlands

12-5-2018 Koudum, Polder De Samenvoeging Ilse Hooijmeijer52.91000 N 5.46139 E The Netherlands

Jos Hooijmeijer

15-6-2018 Oudega (GS), Grote Noordwolderpolder,

Algemiene wei

Jos Hooijmeijer52.91000 N 5.50611 E The Netherlands




Jos Hooijmeijer



Idrissa Ndiaye

Pape Cissao Diedhiou


Y5RLRY


Site Observer(s)

Colourcode:

Date

Ringing site: Koudum, Polder De Samenvoeging

Name Ringer: Jorge Gutiérrez



Ringnr: 2505406

Name 2nd Ringer:

Age (in days; 50 = juv.; 99 = ad.): 99


Erva


Wim Tijsen


Erva



Erva



Erva



Erva



Erva



Erva



Erva





Erva






West




Erva



Erva



West


4-6-2016 Warns, Kampenspolder Wiebe Kaspersma52.87472 N 5.39833 E The Netherlands

Mo Verhoeven

5-7-2016 Heeg, De Pine Mo Verhoeven52.97889 N 5.58306 E The Netherlands


Khady Gueye

17-11-2016 Porto Alto, Evoa Luis Arede38.85000 N -8.96667 W Portugal


Erva



Erva




Erva

Jacob de Vries38.91667 N -8.93333 W Portugal



Oost, De Poel


28-3-2017 Koudum, Polder De Oosterling Jan Kramer52.93444 N 5.45778 E The Netherlands

Eelco Brandenburg


5-6-2017 Oudega (GS), Grote Noordwolderpolder,

Algemiene wei

Ysbrand Galama52.91000 N 5.50611 E The Netherlands

Anna Hatsagi


Erva, East

Kees de Jager38.910421 N -8.919625 W Portugal









6-3-2018 Harlingen, Waddensea Eus de Groot53.15000 N 5.41667 E The Netherlands


Oost, De Poel



Oost, De Poel




Jos Hooijmeijer


Idrissa Ndiaye

Ruth Howison


Y5RLYB


Site Observer(s)

Colourcode:

Date


Name Ringer: Mo Verhoeven



Ringnr: 2504857

Name 2nd Ringer: Nathan Senner

Age (in days; 50 = juv.; 99 = ad.): 99


Mo Verhoeven



Mo Verhoeven



25-6-2013 Koudum, Haanmeer Atser Sybrandy (RUG)52.92333 N 5.43500 E The Netherlands

Ysbrand Galama

27-6-2013 Hindeloopen, Gellehuisterpolder Nathan Senner52.92972 N 5.42778 E The Netherlands




4-7-2013 Tjerkwerd, Hemdijk Egbert van der Velde53.02972 N 5.51944 E The Netherlands








27-11-2014 Pache, Iala Haije Valkema12.035 N -15.641 W Guinea Bissau

Jos Hooijmeijer

Jan van der Kamp


Nathan Senner

Mo Verhoeven






Haije Valkema

Khady Gueye

17-3-2016 Saint-Georges-de-Didonne, Marais de la

Briquetterie

Jean-Marc Frolet45.596 N -0.966 W France

22-3-2016 It Heidenskip, Polder Aent Lieuwes Guillaume Senterre52.93333 N 5.48361 E The Netherlands


11-2-2017 Samorra Correia, Belmonte ricefields,

Southeast















Jos Hooijmeijer


Y5YRRY


Site Observer(s)

Colourcode:

Date





Ringnr: 2503283

Name 2nd Ringer:

Age (in days; 50 = juv.; 99 = ad.): 99



27-1-2013 Puebla de Alcollarín José Guerra39.11667 N -5.78333 W Spain

Marc Gálvez

2-2-2013 Hernan Cortes Theunis Piersma39.03333 N -5.93333 W Spain


5-4-2013 Workum, Workumermeer Marta Lomas Vega52.99278 N 5.46389 E The Netherlands

11-5-2013 Workum, Workumerbinnenwaard-Zuid Merlijn de Graaf52.97917 N 5.41917 E The Netherlands

28-5-2013 Workum, Workumerbinnenwaard-Zuid Berber de Jong52.97917 N 5.41917 E The Netherlands


Alice McBride


Mo Verhoeven


Alice McBride

Mo Verhoeven


Nathan Senner

Alice McBride


Mo Verhoeven


16-2-2014 Valdehornillos Mo Verhoeven39.05028 N -5.97583 W Spain

Alice McBride




Alice McBride

Mo Verhoeven


Mo Verhoeven

Nathan Senner


Alice McBride

Mo Verhoeven


Alice McBride

Nathan Senner


Alice McBride

Nathan Senner


Jelle Loonstra

Alice McBride


Alice McBride

Nathan Senner





Haije Valkema

15-2-2016 Yelbes Dirk Tanger38.96944 N -6.00167 W Spain



15-2-2016 Yelbes Fred Cottaar38.96944 N -6.00167 W Spain








3-2-2017 Santa Amalia Mo Verhoeven39.00389 N -5.98611 W Spain




Wiebe Kaspersma












3-2-2018 Isla Mayor, rice fields Jos Hooijmeijer37.13944 N -6.18944 W Spain

Libbe Zijlstra










Jos Hooijmeijer



Idrissa Ndiaye

Ruth Howison


Idrissa Ndiaye

Ruth Howison


Y6LBLB


Site Observer(s)

Colourcode:

Date





Ringnr: 3655593

Name 2nd Ringer: Rocío Marquez Ferrando

Age (in days; 50 = juv.; 99 = ad.): 99


9-9-2011 Huelva, Parque Natural de las Marismas

del Odiel

Rocío Marquez Ferrando37.23333 N -6.96667 W Spain








Erva


Haije Valkema


Erva


Pieter Breeuwsma


Erva




Gjerryt Hoekstra









Tom Jager


Erva



Erva



Erva



Erva



Pete Potts




Jos Hooijmeijer


Y6LRBB


Site Observer(s)

Colourcode:

Date





Ringnr: 3655589


Age (in days; 50 = juv.; 99 = ad.): 99


13-1-2012 Isla Mayor, Veta la Palma, rice fields Rocío Marquez Ferrando37.03556 N -6.19500 W Spain

15-2-2012 Yelbes Jos Hooijmeijer38.96944 N -6.00167 W Spain

Tom Jager

20-3-2012 Koudum, Haanmeer Lucie Schmaltz52.92333 N 5.43500 E The Netherlands

20-3-2012 Koudum, Haanmeer Helena Batalha52.92333 N 5.43500 E The Netherlands

Lucie Schmaltz

28-5-2012 Workum, Workumermeer Jos Hooijmeijer52.99278 N 5.46389 E The Netherlands

8-2-2013 Almoharin Nathan Senner39.15000 N -6.03333 W Spain

Mo Verhoeven


Nathan Senner

10-2-2013 Almoharin Nathan Senner39.15000 N -6.03333 W Spain

Mo Verhoeven


Nathan Senner


Erva










Erva


Wim Tijsen


Alice McBride

Mo Verhoeven


Mo Verhoeven




6-6-2014 Koudum, Haanmeer Rene Faber (RUG)52.92333 N 5.43500 E The Netherlands


Alice McBride

Nathan Senner


Mo Verhoeven

Alice McBride


Alice McBride

Mo Verhoeven

5-2-2015 Almoharin Alice McBride39.15000 N -6.03333 W Spain

Nathan Senner

Mo Verhoeven

12-2-2015 Santa Amalia Nathan Senner39.00389 N -5.98611 W Spain

Alice McBride

Mo Verhoeven




Alice McBride

Mo Verhoeven


16-3-2015 Molkwerum, Noorderpolder Marycha Franken52.91139 N 5.41778 E The Netherlands



15-2-2016 Santa Amalia Haije Valkema39.00389 N -5.98611 W Spain


West




Drew Bingrun


Erva



Erva









25-3-2017 Koudum, Haanmeer Jan Kramer52.92333 N 5.43500 E The Netherlands


17-6-2017 Sanfirden, Sanfurderhoek Ysbrand Galama52.98611 N 5.51417 E The Netherlands

Egbert van der Velde

Anna Hatsagi

17-6-2017 Sanfirden, Sanfurderhoek Egbert van der Velde52.98611 N 5.51417 E The Netherlands









Wiebe Kaspersma


Eric ten Cate




21-6-2018 Pikesyl, Hisse- en Pikemar Siebe (RUG) Bonthuis53.00111 N 5.57222 E The Netherlands


Jos Hooijmeijer


Y6LYRY


Site Observer(s)

Colourcode:

Date

Ringing site: Warns, Kampenspolder




Ringnr: 2503291

Name 2nd Ringer:

Age (in days; 50 = juv.; 99 = ad.): 99

31-5-2012 Warns, Kampenspolder Bas van den Boomgaard52.87472 N 5.39833 E The Netherlands

Sytse Kooistra



Erva

Nuno Cidraes Vieira38.91667 N -8.93333 W Portugal


Erva


Pieter Breeuwsma


Erva


Pieter Breeuwsma


Erva


Pieter Breeuwsma


Erva


Haije Valkema



Jan Beekman52.28167 N 4.93028 E The Netherlands







Erva


Wim Tijsen


Erva




Erva



Erva



Erva



Erva



Erva



Erva



Erva


Anne de Potier


Erva



Erva



20-3-2014 Warns, Kampenspolder Rene Faber (RUG)52.87472 N 5.39833 E The Netherlands



Erva






Jan Kramer39.31944 N -0.33472 W Spain

Rennie Kramer



West


6-4-2015 Stavoren, Zuidermeerpolder Rene Faber52.87611 N 5.38361 E The Netherlands


West



Idrissa Ndiaye

Ruth Howison


Y6RYLY


Site Observer(s)

Colourcode:

Date

Ringing site: Oudega, De Rige




Ringnr: 2503151


Age (in days; 50 = juv.; 99 = ad.): 99

13-6-2012 Oudega, Tsjerkemar Egbert van der Velde52.99833 N 5.55361 E The Netherlands

Haije Valkema

23-6-2012 Sanfirden, Sanfurd Brekkenkant Haije Valkema52.98889 N 5.53111 E The Netherlands

27-6-2012 Gaast, Jouke Sjoerdspolder Rienk Jelle Hibma (RUG)53.00361 N 5.41972 E The Netherlands


Erva


Pieter Breeuwsma


Erva

Marten Sikkema38.91667 N -8.93333 W Portugal


Erva



Bert Zijlstra (RUG)

9-4-2013 Pikesyl, Hisse- en Pikemar Jouke van der Meulen53.00111 N 5.57222 E The Netherlands


Marycha Franken







Erva


Wim Tijsen


Erva



Erva



Erva



Erva






13-3-2014 Pikesyl, Hisse- en Pikemar Atser Sybrandy (RUG)53.00111 N 5.57222 E The Netherlands












Erva



Erva




Erva



Erva



Erva


8-3-2015 Heeg, Gouden Boaijum Haije Valkema52.96499 N 5.61991 E The Netherlands



16-4-2015 Pikesyl, Hisse- en Pikemar Anneke Zeinstra53.00111 N 5.57222 E The Netherlands


Haije Valkema

12-11-2015 Isla Mayor, Veta la Palma Idrissa Ndiaye36.97083 N -6.23500 W Spain




3-6-2016 Oudega, Tsjerkemar Haije Valkema52.99833 N 5.55361 E The Netherlands


Erva



Erva



Erva




Erva















29-6-2017 Sanfirden, Sanfurderhoek Tim van der Meer52.98611 N 5.51417 E The Netherlands

23-2-2018 Porto Alto, Toneca Siebe Bonthuis38.95361 N -8.93639 W Portugal









19-6-2018 Pikesyl, Hisse- en Pikemar Siebe (RUG) Bonthuis53.00111 N 5.57222 E The Netherlands



Idrissa Ndiaye

Ruth Howison


Y6YBBB


Site Observer(s)

Colourcode:

Date

Ringing site: Hindeloopen, Kleine Wiskepolder




Ringnr: 2503136


Age (in days; 50 = juv.; 99 = ad.): 99





Erva


Pieter Breeuwsma


Erva



Erva



Erva


Haije Valkema


Erva



22-3-2013 Workum, Workumer Nieuwland Merlijn de Graaf52.95500 N 5.43194 E The Netherlands


28-10-2013 Isla Mayor, Veta la Palma Mo Verhoeven36.97083 N -6.23500 W Spain




Erva


Wim Tijsen


Erva

Theunis Piersma38.91667 N -8.93333 W Portugal


Erva



Erva



Pete Potts




Erva



Erva



Erva



Erva





Erva



10-4-2015 Workum, Workumerbinnenwaard-Noord Piet Wiepke Bouma52.99611 N 5.41139 E The Netherlands






Erva



Erva



Erva



Erva



Paulien van der Werf

21-5-2016 Hindeloopen, Kleine Wiskepolder Ysbrand Galama52.93694 N 5.44667 E The Netherlands





Erva



Erva



Erva

Bob Loos38.91667 N -8.93333 W Portugal




Erva





Ronald Messemaker




Jos Hooijmeijer


Y6YBRB


Site Observer(s)

Colourcode:

Date

Ringing site: Gaast, Polder Gaast-Ferwoude




Ringnr: 2502956

Name 2nd Ringer: Rienk Jelle Hibma (RUG)

Age (in days; 50 = juv.; 99 = ad.): 99

7-6-2012 Gaast, Polder Gaast-Ferwoude Rienk Jelle Hibma (RUG)53.01806 N 5.43194 E The Netherlands


Erva


Pieter Breeuwsma


Erva


Haije Valkema


Erva



Erva



Erva



Erva





22-3-2013 Bourgoyen, de Meersen Rudi Baetsle51.05944 N 3.66972 E Belgium




Erva



Erva






Haije Valkema





Erva



Erva


29-4-2015 Exmorra, Parregaastermeer Emma Penning53.03194 N 5.45361 E The Netherlands

27-6-2015 Exmorra, Parregaastermeer Emma Penning53.03194 N 5.45361 E The Netherlands


Jos Hooijmeijer




1-4-2016 Tjerkwerd, Rytseterp Jan Kramer53.03722 N 5.48972 E The Netherlands

Jan Scholtmeijer

6-4-2016 Allingawier, Vierhuizen en Bonjeterp Guillaume Senterre53.04556 N 5.44806 E The Netherlands




4-5-2018 Allingawier, Vierhuizen en Bonjeterp Mo Verhoeven53.04556 N 5.44806 E The Netherlands

Jelle Loonstra

16-5-2018 Piaam, Kooiwaard Tim Oortwijn53.03111 N 5.40028 E The Netherlands


Idrissa Ndiaye

Ruth Howison


Idrissa Ndiaye

Ruth Howison


Y6YRRB


Site Observer(s)

Colourcode:

Date

Ringing site: Nijhuizum, Monnikeburenpolder

Name Ringer: Niko Groen (RUG)



Ringnr: 3654168


Age (in days; 50 = juv.; 99 = ad.): 99

23-4-2012 Nijhuizum, Monnikeburenpolder Niko Groen (RUG)52.99278 N 5.49972 E The Netherlands


21-2-2013 Alfafar, Marjales de Alfafar, Parque

Natutal L'Albufera

Francisco Javier García-Gans39.40000 N -0.36667 W Spain


L'Albufera

Marten Sikkema39.31444 N -0.34000 W Spain


L'Albufera


Marten Sikkema


L'Albufera




Jan Beekman52.28167 N 4.93028 E The Netherlands






Tijs van den Berg52.28167 N 4.93028 E The Netherlands





5-6-2013 Oudega, Westerskatting Rene Faber53.00222 N 5.55167 E The Netherlands




23-6-2013 Hiers-Brouage, Reux Loïc Jomat45.81556 N -1.02083 W France

3-2-2014 Puebla del Río, Isla Mínima, rice fields Jos Hooijmeijer37.14278 N -6.12417 W Spain

Tom Jager


Natutal L'Albufera


19-2-2014 Silla, Tancat de la Rattla, Parque Natural

de L'Albufera (Valencia)



L'Albufera


21-2-2014 Silla, Tancat de la Rattla, Parque Natural

de L'Albufera (Valencia)


22-2-2014 El Palmar, Tancat de L'Estell, Parque



Gerrit Gerritsen



Gerrit Gerritsen39.30020 N -0.31260 W Spain




23-2-2014 El Palmar, Tancat del Fangar, Parque





Gerrit Gerritsen39.30020 N -0.31260 W Spain



Bosco Dies39.31944 N -0.33472 W Spain

5-3-2014 Catarroja, Tancat de Villalba, Parque



6-3-2014 Catarroja, Tancat de Naia, Parque Natural

de L'Albufera


8-4-2014 Kleine Gaastmeer, Kaappolder West Haije Valkema52.97444 N 5.50528 E The Netherlands


29-5-2014 Nijhuizum, Monnikeburenpolder Jan Kramer52.99278 N 5.49972 E The Netherlands

31-5-2014 Nijhuizum, Monnikeburenpolder Jan Kramer52.99278 N 5.49972 E The Netherlands


Natutal L'Albufera


Rennie Kramer




Rennie Kramer



Idrissa Ndiaye

Ruth Howison


describing habitat and finding colour rings of black ...€¦ · 1 describing habitat and finding...

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