why migrate? food availability weather mating so where to? many birds follow migration corridors...
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Migration Patterns and Purpose
Why Migrate?Food availability
Weather
Mating
So where to?Many birds follow
migration corridors called flyways
Following important habitat features; food water etc.
Wintering GroundsThe place where a
migratory bird spends the winter
Important places throughout the US include South Texas, Louisiana marshes South Florida
As far south as Central and South America
Canada Warbler
Why Band a Bird?
Tells scientists several things about different populations
Where birds go
How they get there
How long they live
Measurements TakenWing Chord (shoulder to tip)
Tail Length
Sex
Age
Species
Weight
Data CollectionUSGS Bird Banding Laboratory, Patuxent
Maryland
Place where all information is stored
Every bird banded in North America has an entry in the banding labs database
Info about a recaptured bird can be looked up in database
Migratory Bird LawsMigratory bird treaty act of 1918
Partnership between The United States, Mexico, Russia, The United Kingdom (Canada), and Japan
Federally protects nearly every aspect of a migratory birds life
Migratory Bird Laws cont.Prohibited actions under Migratory Bird
Treaty Act
Harass, kill, capture, move, sell, buy, possess, any migratory bird or part of a migratory bird including nests and feathers.
Unless authorized by the Department of the Interior, hunting seasons, permits to possess etc.
Photo CreditsSnow Geese: http://tripcart.typepad.com/tripcart_the_blog/potd/page/2/
Flyways One: http://dnr.wi.gov/org/land/wildlife/hunt/waterfow/process.htm
Winter: http://www.vdberk.co.uk/winterhardiness.html
Grasshopper: http://photoshd.wordpress.com/2008/06/29/my-grasshopper-friend/
Pair Bond: http://www.digitalhit.com/posters/p/3508119
Flyways Two: http://mapathon.com/copy.htm
Canada Warbler Map: http://scienceblogs.com/gregladen/2008/03/boreal_and_south_american_bird.php
Banding: Adam Landon 2010
Snow Goose Neck Band: http://birdband.sasktelwebhosting.com/
Leg Band: http://www.singing-wings-aviary.com/birdbanding.htm
Bird on Scale: Adam Landon 2010
Bird Wing Measure: Amanda Filipi 2010