tennessee; improving your backyard wildlife habitat

Upload: free-rain-garden-manuals-and-more

Post on 06-Apr-2018

222 views

Category:

Documents


0 download

TRANSCRIPT

  • 8/3/2019 Tennessee; Improving Your Backyard Wildlife Habitat

    1/16

    Improving Your

    Backyard

    Wildlife Habitat

    PB1

    $2.25

  • 8/3/2019 Tennessee; Improving Your Backyard Wildlife Habitat

    2/16

    Table o Contents

    Wildlie Needs .............................................................................................................................. 3

    Wildlie Management Concepts .................................................................................................... 3

    Edge, Vertical Structure and Interspersion .................................................................................... 4

    Draw a Map .................................................................................................................................. 5

    Putting It All Together .................................................................................................................. 6

    Benets o Landscaping or Wildlie ............................................................................................. 6

    What Should You Plant? ............................................................................................................... 6

    Table 1 - Native trees and shrubs benecial to wildlie .............................................................. 7

    Table - Native herbaceous plants that attract hummingbirds and butterfies........................... 8

    Providing Shelter .......................................................................................................................... 9

    Feeders and Nest Boxes ................................................................................................................ 9

    Table 3 - Food preerences o birds common to backyard eeders in Tennessee ....................... 10

    SPECIAL CASE: The Eastern Bluebird ..................................................................................... 11

    Water .......................................................................................................................................... 13

    Conclusion .................................................................................................................................. 14

  • 8/3/2019 Tennessee; Improving Your Backyard Wildlife Habitat

    3/16

    3

    W

    Improving

    Your BackyardWildlie Habitat

    Craig A. Harper, Associate Professor

    Forestry, Wildlife and Fisheries

    ildlie viewing is

    becoming one o the most

    popular orms o outdoor

    recreation in America. Ob-

    serving wildlie in ones own backyard is not only

    enjoyable, but convenient as well. In some areas

    (especially rural settings), excellent wildlie habitatexists and viewing opportunities can be abundant.

    However, in a growing number o areas (especially

    suburbia), wildlie habitat has deteriorated or been

    destroyed entirely. This is particularly true in many

    subdivisions where the landscape was bulldozed

    and leveled-o prior to home construction. In ei-

    ther case, there are lots o ways to improve wildlie

    habitat around your home.

    Wildlie NeedsWildlie have our basic requirements: ood,

    cover, water and space. Considering these require-

    ments, you can see where the area around your

    home may be decient in one or more o these. In

    most cases you can improve deciencies; how-

    ever, in some cases, because o physical or spatial

    limitations, you will not. These our basic habitat

    requirements dier (to some degree) with each

    wildlie species. What is good or one species may

    not be good or another. For example, squirrels

    will not get much benet rom a large lawn or

    pasture where bluebirds are thriving on insects.

    Also, some mammals (e.g., deer and bears) need

    a much larger area to meet their habitat require-

    ments than others (e.g., rabbits or chipmunks)do. There is, however, overlap in many habitat

    requirements. Many wildlie species benet rom

    a ruit-producing shrub or bird eeder and a

    multitude o species will use the standing dead

    oak at the edge o your yard or eld or nesting,

    denning, roosting, perching and eeding.

    Wildlie ManagementConcepts

    Beore starting a plan to improve wildlie

    habitat around your home, there are some ba-sic concepts o wildlie management you should

    understand. Realizing that not all species have the

    same habitat requirements, a diversity o habitats

    and vegetative types will benet more wildlie

    species than an area with homogenous vegeta-

    tive cover. Increased plant diversity gives rise to

    increased animal diversity, where diversity is the

    number o species, not the number o individuals.

  • 8/3/2019 Tennessee; Improving Your Backyard Wildlife Habitat

    4/16

    4

    Food, cover, water

    and space resources

    are nite and can be

    utilized completely.

    To this end, an area

    can support only

    so many animals,

    which is expressed asthe carrying capacity

    (Figure 1). In many

    areas, the carrying

    capacity has been

    reached, yet no

    animals are present!

    That is because there

    is insucient habitat

    to support any wild-

    lie. This is where

    activities or im-

    provement are muchneeded and results

    can be astonishing.

    Edge, VerticalStructureand Interspersion

    Edge is where two or more habitats come

    together. For example, an edge exists where

    your yard meets the woodlot. Most oten, many

    wildlie species are ound here. The reason these

    Figure 2. You can increase the amount o edge by creating irregular borders.

    House

    species are associated with edges is because both

    ood AND cover are in close proximity. Escaping

    a hawk or house cat is much easier or a rabbit i

    some brushy cover is near the clover and grass its

    eeding on. Likewise, a ox is going to hunt most

    oten where the rabbit is near the edge! Cre-

    ating an irregular border (as opposed to a straight

    one) with your yard and ornamental plantings is

    the easiest way to increase the amount o edge

    near your home (Figure ).

    Edge is represented on both a horizontal

    and vertical plane. Vertical structure is repre-

    Wate

    r

    Cover

    Food

    Wildlife

    Figure 1.

    Carrying capacity is defned bythe resource in limited supply,

    known as the limiting actor.

    Figure 3.Edge is increased vertically by stair

    stepping vegetation starting with low-growing herbaceous vegetation, then

    shrubs, small trees and large trees.

  • 8/3/2019 Tennessee; Improving Your Backyard Wildlife Habitat

    5/16

    5

    Draw a MapOne o the rst steps in providing increased

    habitat or wildlie in your backyard is to draw a

    map o the area surrounding your home (Figure 5).

    As accurately as you can, start with your property

    boundaries and draw in your house, driveway, ence,

    shed and then your shrubbery. Continue by identi-ying the location o all trees, bushes, bird eeders,

    birdbaths, etc. Once completed, step o distances

    (e.g., rom house to road, shed to garden, etc.) to

    get a rough check o your map and correct any sign

    o errors regarding scale. Now, what do you have?

    Figure 4. Establishing islands in youryard is a great way to increase edge and

    promote diversity.

    Figure 5.Drawing o a backyard.

    sented by dierent layers o vegetation

    extending rom the ground up to the tree

    canopy (Figure 3). Vertical structure is impor-

    tant or several reasons. Most importantly, it

    represents dierent layers o cover or protec-

    tion, nesting, roosting and eeding or all kinds

    o animals and some species specialize in

    being able to exploit a particular layer. Many

    small mammals and birds (e.g., eastern to-whees and brown thrashers) eed on the ground

    amongst brush and low vegetation. Carolina

    wrens, northern cardinals and northern mock-

    ingbirds orage or ood in low-growing shrubs

    and trees. Red-eyed vireos, scarlet tanagers and

    yellow-throated warblers orage in the canopy

    o mature stands. Some species (e.g., wild tur-

    keys) preer areas where visibility is good and

    the vegetation is not too dense. Others (e.g.,

    rabbits) preer areas with low-growing dense

    vegetation and reduced visibility.

    Interspersion is best described as the ar-

    rangement o habitats. A mixture o habitats

    arranged in a patchwork mosaic provides good

    interspersion. Make your yard and surrounding

    area more attractive or wildlie by arranging

    dierent habitats close to one another. An island

    o wildfowers or shrubbery in your yard increas-

    es interspersion while breaking up large expanses

    o grass (Figure 4).

  • 8/3/2019 Tennessee; Improving Your Backyard Wildlife Habitat

    6/16

    6

    Look at the habitat holes on your map and

    study the arrangement o vegetation. This will

    help you see where you should begin working.

    Putting ItAll Together

    Although every area is unique, most back-yards need more wildlie-riendly plants ar-

    ranged to increase interspersion and edge. Plant-

    ing trees, shrubs and herbaceous plants that are

    benecial to wildlie usually is the single most

    important thing you can do to improve wildlie

    habitat around your home. Planting suitable

    plants in the appropriate places in the proper

    arrangement will benet wildlie throughout the

    year. Food, cover and, to some degree, space will

    be provided automatically.

    As you develop a plan to landscape your

    area or wildlie, keep edge and interspersion

    in mind. I you are starting rom scratch, con-

    sider planting the tallest trees along the outside

    border o your yard and continue in toward the

    center o your yard in a stair-step ashion with

    smaller trees, then large shrubs, small shrubs and

    nally herbaceous plants (see Figure 3). I woods

    already surround your house, consider planting

    smaller trees and shrubs at the edge o your yard

    and the woods, creating what is called a sot

    edge. That is, the transition between the woods

    and your yard is gradual, not sudden. This makesthe area attractive to many more species o

    wildlie. Remember that a diversity o vegetation

    gives rise to a diversity o wildlie.

    Benefts oLandscapingor Wildlie

    Many benets are realized when landscaping

    or wildlie. Obviously, wildlie will benet rom

    habitat enhancement, but you will benet as well.By landscaping

    or wildlie, you

    can benet by

    conserving energy

    and reducing your

    heating and cool-

    ing bill (Figure

    6). Plant coniers

    as a windbreak

    on the north and west sides o your property to

    protect rom chilling winter storms. Evergreen

    trees and shrubs act as insulators or birds and

    mammals, protecting them rom bitter winds and

    reezing precipitation. Foraging spots oten can

    be ound under evergreens when snow covers thesurrounding area. On the south side o your prop-

    erty, plant deciduous trees that produce plenty o

    shade or a cooling eect in the summer. During

    winter, these trees will lose their leaves and al-

    low the suns warming rays to reach your home

    and help reduce your heating bill. Soil conserva-

    tion also is realized by landscaping or wildlie.

    Birdwatching and photographic opportunities

    are greatly increased by landscaping in a wildlie-

    riendly manner. Further, what better place is

    there to raise your children than one in which they

    can observe wildlie and learn about the naturalworld in their own backyard? In addition, the

    beauty created by your landscaping eorts may

    increase the value o your home and property.

    What ShouldYou Plant?

    First, consider planting trees and shrubs

    native to Tennessee because native species are

    well adapted to the soils and climate o our area

    (Table 1). There is less risk in native plants suc-cumbing to drought and disease (except or exot-

    ic diseases) and they usually require less cultural

    attention than exotic species. Second, be aware

    o each plant species requirements or sunlight,

    soil type, moisture and pH. Contact your county

    Extension agent or help concerning site require-

    ments i you are not sure.

    When deciding which species to plant, keep

    in mind the year-round needs o wildlie. Plants

    Wind

    Sun

    Figure 6. Planting the correct species in the properarrangement can help conserve energy.

  • 8/3/2019 Tennessee; Improving Your Backyard Wildlife Habitat

    7/16

    7

    .1elbaT tevitaN ifenebsburhsdnaseer otlaic .efildliw

    *seicepS mroF )epyt-tiurf,revoc(tifeneBefildliW

    yrrebytuaebnaciremA )apracillaC( burhssuoudiced sepurd

    hceebnaciremA )sugaF( eertsuoudiced stun

    yllohnaciremA )xelI( eertneergreve seirreb,revocretniw

    hsaniatnuomnaciremA )subroS( eertsuoudiced semop

    elppA )sulaM( eertsuoudiced semop

    yrrebpsardnayrrebkcalB )subuR( burhssuoudiced stelepurdfosetagergga

    mugkcalB )assyN( eertsuoudiced sepurd

    yrrebeulB )muiniccaV( burhssuoudiced seirreb

    yrrehC )sunurP( eertsuoudiced sepurd

    nipauqnihC )aenatsaC( eert/burhssuoudiced stun

    elppa-barC )sulaM( eertsuoudiced semop

    kcitsgniklaws'liveD )ailarA( burhssuoudiced sepurd

    doowgoD )sunroC( eertsuoudiced sepurd

    kcolmehnretsaE )agusT( eertneergreve revocretniwradecdernretsaE )surepinuJ( eertneergreve revocretniw

    yrrebredlE )sucubmaS( burhssuoudiced sepurd

    nrohteriF )ahtnacaryP( burhsneergreve revocretniw,semop

    eert-egnirF )suhtnanoihC( burhssuoudiced epurd

    yrrebkcaH )sitleC( eertsuoudiced sepurd

    nrohtwaH )sugeatarC( burhssuoudiced semop

    tun-lezaH )sulyroC( burhssuoudiced stun

    yrokciH )ayraC( eertsuoudiced stun

    tsucolyenoH )aistidelG( eertsuoudiced semugel

    seirrebelkcuH )aicassulyaG( burhssuoudiced seirreb

    lerualniatnuoM )aimlaK( burhsneergreve revocretniw

    kaO )sucreuQ( eertsuoudiced snroca

    wapwaP )animisA( eertsuoudiced serutcurtsekil-yrrebfoetagergga

    nommisreP )sorypsoiD( eertsuoudiced seirreb

    eniP )suniP;enipetihw.pse( eertneergreve sdees,revocretniw

    mulP )sunurP( eertsuoudiced sepurd

    yrreblumdeR )suroM( eertsuoudiced sepurd

    nordnedodohR )nordnedodohR( burhsneergreve revocretniw

    yrrebecivreS )reihcnalemA( eertsuoudiced semop

    ailongamnrehtuoS )ailongaM( eertneergreve revocretniw

    hsubecipS )aredniL( burhssuoudiced sepurd

    camusnrohgatS )suhR( burhssuoudiced sepurd

    hsub-yrrebwartS )sumynouE( burhssuoudiced sdees

    munrubiV )munrubiV( burhssuoudiced sepurd

    repeercainigriV )sussiconehtraP( enivsuoudiced seirreb

    gnitnalpdednemmocer,aeraruoynirogivseicepsgnidragerlennosrepnoisnetxEytnuochtiwkcehC*.)(nidedivorpsisuneG.cte,snoitidnoclios,seuqinhcet

  • 8/3/2019 Tennessee; Improving Your Backyard Wildlife Habitat

    8/16

    8

    that benet wildlie most in spring and summer

    may not benet wildlie in all and winter. Be

    sure to plant a variety o species that will benet

    wildlie during all seasons. Foods most oten

    consumed by birds and small mammals during

    spring and summer include sot mast (i.e., sot

    feshy ruits, e.g., drupes, berries and pomes), in-

    vertebrates (e.g., beetles, bugs, worms, snails andfies), leay greens and tender shoots o rapidly

    growing twigs. These oods are relatively high in

    protein and minerals, both o which are needed

    during this time o year when many animals (par-

    ticularly the young) are growing rapidly.

    As all and winter arrive, many wildlie

    species seen around the house in spring and

    summer disappear, either hibernating or mi-

    grating to warmer, more hospitable places. For

    those that stay, all and winter present dicult

    challenges, such as nding shelter rom harsh

    weather and high-energy ood. Foods relishedduring the all and winter seasons include hard

    mast (i.e., acorns and nuts), seeds, twigs, bulbs,

    invertebrates and cool-season grasses and

    legumes. Foods high in carbohydrates and at

    are at a premium during winter, as an animals

    energy reserves are depleted through cold winter

    months. Selected trees and shrubs deserving

    consideration when landscaping or wildlie

    habitat improvement around your home are

    listed in Table 1.A wide variety o herbaceous plants are

    used by wildlie. Most o the herbaceous vegeta-

    tion around homes, other than lawn grasses, is

    comprised o ornamental plantings, oten in-

    cluding exotic fowering species. Many fowering

    herbaceous species can be planted specically

    to attract hummingbirds and butterfies. When

    planting ornamentals or cover, keep the concept

    o vertical structure in mind. More wildlie spe-

    cies will benet i herbaceous plants are arranged

    to provide a sot edge. Holistically, herbaceous

    plants around your yard benet wildlie more asa source o cover than orage, though some spe-

    cies, especially white-tailed deer and rabbits, may

    .seilfrettubdnasdribgnimmuhtcarttatahtstnalpsuoecabrehevitaN.2elbaT

    seicepS tibaH tifeneBefildliW

    retsA )retsA( launna ylfrettub

    tomagreB )adranoM( lainnerep dribgnimmuh/ylfrettub

    nasusdeye-kcalB )aikcebduR( launna ylfrettub

    ratsgnizalB )sirtaiL( lainnerep dribgnimmuh/ylfrettub

    deewylfrettuB )saipelcsA( lainnerep dribgnimmuh/ylfrettub

    rewolflanidraC )aileboL( lainnerep dribgnimmuh/ylfrettub

    enibmuloC )aigeliuqA( lainnerep dribgnimmuh/ylfrettub

    rewolfenoC )aecanihcE( lainnerep ylfrettub

    esormirpgninevE )arehtoneO( lainnerep dribgnimmuh/ylfrettub

    dornedloG )ogadiloS( lainnerep ylfrettub

    deeWeyP-eoJ )muirotapuE( lainnerep ylfrettub

    deewkliM )saipelcsA( lainnerep ylfrettub

    segdeS )xeraC( lainnerep ylfrettub

    ton-em-hcuotdettopS;deewlewejro( )sneitapmI

    launna dribgnimmuh/ylfrettub

    rewolfnuS )suhtnaileH( lainnerep ylfrettub

    rewolfnusdeeskciT )snediB( lainnerep ylfrettub

    ylilpacs'kruT )muiliL( lainnerep dribgnimmuh

    steloiV )aloiV( lainnerep ylfrettub

  • 8/3/2019 Tennessee; Improving Your Backyard Wildlife Habitat

    9/16

    9

    browse these plants. Herbaceous species you can

    use to attract hummingbirds and butterfies are

    listed in Table .

    Providing ShelterIn addition to landscaping or ood and cov-

    er, there are more possibilities to consider. When

    you nish limbing and pruning work around the

    house or cutting up storm damage, pile the mate-

    rial adjacent to a nearby woodlot. Brushpiles are

    magnets or lots o birds (oraging or insects),

    small mammals (e.g., rabbits and chipmunks) and

    reptiles (yes, this includes snakes!). To construct

    a brushpile or wildlie, place the largest limbs (or

    logs) on the bottom and pile the smaller brush on

    top in a loose ashion (Figure 7). This provides

    dens and crevices or wildlie under the protec-

    tion o brushy cover. I you do not have any

    large limbs or logs, you can pile smaller brushon top o sections o corrugated pipe. Ater the

    holidays, your Christmas tree makes a wonderul

    addition to the top o the brushpile. As you tend

    your garden in the spring, instead o throwing

    rocks wildly into adjacent brush or woods, create

    a rockpile. Many species (e.g., chipmunks, oxes,

    rabbits, raccoons and snakes) will benet rom

    your eort.

    Additional habitat or many species

    o birds, mammals, reptiles and am-

    phibians is provided by cavities

    in trees, particularly dead,

    standing trees (called

    snags; Figure 8).

    These structures pro-

    vide nesting, denning

    and roosting sites or

    species such as blue-

    birds, owls, wrens,

    fycatchers, woodducks, nuthatches,

    chickadees, swallows,

    titmice, woodpeckers,

    vultures, black bears,

    squirrels, raccoons,

    bats, black rat snakes

    and garter snakes.

    Snags also serve as

    perching sites or

    eagles, hawks, owls,

    vultures, herons and

    kingbirds and eedingsites or brown creep-

    ers, nuthatches, king-

    birds, woodpeckers,

    gnatcatchers, lizards, skinks and treerogs. Unless

    the snag is a potential hazard to your home or

    other structural property, let it stand and watch

    what happens. You will be amazed at how many

    wildlie residents and visitors it receives.

    Feeders and

    Nest BoxesIn addition to planting trees and shrubs that

    produce ood and cover or wildlie, eeders

    and nest boxes can be placed throughout

    your property to urther provide or

    wildlie around your house. Much

    has been written concerning back-

    yard eeders and nest boxes, with

    many designs and varieties avail-

    able. For comprehensive inorma-

    tion on eeding birds and eeder designs,

    reer to Wild about Birds by CarrolHenderson, available through the Minne-

    sota Department o Natural Resources

    (800) 657-3757 or (61) 97-3000.

    Detailed inormation on nest boxes and

    other nesting structures and how to

    construct them is provided in Woodworking for

    Wildlife: Homes for Birds and Mammals, also by

    Carrol Henderson. A version adapted or Tennes-

    see is available through the TWRA and is titled,Figure 7. Brushpile designed or wildlie.

    Figure 8. Standing deadtrees (snags) attract many

    species o wildlie.

  • 8/3/2019 Tennessee; Improving Your Backyard Wildlife Habitat

    10/16

    10

    Woodworking for Wildlife in Tennessee, and

    is available by contacting the Tennessee Wildlie

    Resources Agency, (800) 6-6704.

    Whichever type o eeder(s) you use, there

    are some key points to consider. First, there is

    no best or worst time to begin eeding; however,

    i you begin a eeding program in the all/winter

    months, continue until spring. Wildlie aroundyour house will begin to depend on the ood pro-

    videdthat is why they are there! You can contin-

    ue eeding wildlie throughout the year i desired.

    Another point to keep in mind is to beware o

    house cats! They are extremely procient preda-

    tors and can severely reduce the number o birds

    and small mammals around your house. Research

    has shown that house cats (both eral and pets)

    kill hundreds o thousands o birds and untold

    numbers o mammals each year. In many cases,

    the prey is not consumed, only killed because o

    the cats innate sense to hunt. I you have a cat,consider keeping it inside and/or putting a bell on

    its collar. All eral cats seen in your area should be

    reported to your local animal shelter or immedi-

    ate capture and removal. Otherwise, you are doing

    a disservice to our native wildlie populations.

    House cats (whether eral or not) are NOT natural

    predators; they are exotic animals, not native to

    North America.

    You can cater to the species you preer by us-

    ing selective eeder designs and seeds. Most birds

    will eagerly consume black oil-type sunfower

    seeds and white proso millet and all can eed rom

    platorm and fy-through eeders (Figure 9). Put

    out several dierent types o oods part o the

    un is nding out who will eat what! Dont orget

    to try suet eeders, thistle, ruit halves nailed to atree or post, peanut butter smeared on the side o

    a tree and old breads and cakes. This should en-

    sure a diversity o birds around your home. Feed-

    ers should be cleaned periodically with hot, soapy

    water ortied with a capul o disinectant (10%

    bleach); rinse well. Bottoms o eeders should

    have small holes drilled in (i they are not screen

    bottoms) to acilitate moisture evaporation and

    reduce mildew. I you enjoy watching wildlie

    visiting your eeders, be sure to place them in

    view o a window or glass sliding door. How-

    ever, remember sites under eeders may be verymessy with spilled seeds and droppings, which

    can attract mice and rats. Hence, your back porch

    or patio may not be the best place or a eeder.

    Listed in Table 3 are oods preerred by birds that

    requent backyard eeders in Tennessee.

    European starlings are especially attracted

    to peanut hearts, so you may not want to oer

    them at your eeders. Also, note that it is legal to

    .eessenneTnisredeefdraykcabotnommocsdribfosecnereferpdooF.3elbaT

    seicepS dooFderreferP

    sevodgninruom tellimosorpetihw,sdeesrewolfnusepyt-liokcalb

    ,seedakcihc,srekcepdoowsehctahtun,ecimtit

    ,stunaepnekorbdnadellehs,stundekcarc,sdeesrewolfnusepyt-liokcalbteus,sbmurcdaerb

    yajeulb teus,nrocdnastundekcarc,stunaep,)sepytlla(sdeesrewolfnus

    ,srehsarhtnworb,sdribgnikcom

    sdribtac,sehsurht,snibor

    sbmurcdaerbdnasnisiar,segnaro,selppatuc

    slanidrac stunaepnekorbdnadellehs,nrocdekcarc,)sepytlla(sdeesrewolfnus

    seehwotnretsaEdellehsdna,nrocdekcarc,)sepytlla(sdeesrewolfnus,tellimosorpetihw

    stunaepnekorbdna

    kaebsorggnineve stunaepnekorbdnadellehsdna,nrocdekcarc,)sepytlla(sdeesrewolfnus

    sehcnifdlog sdeesrewolfnusepyt-liokcalb,sdeesrewolfnusdelluh,eltsihtregin

    hcnifesuoh eltsihtregin,sdeesrewolfnusepyt-liokcalb

    hcnifelprup )sepytlla(sdeesrewolfnus

    socnuj,sworraps sbmurcdaerb,taehw,sdeesrewolfnusepyt-liokcalb,tellimosorpetihw

    selkcarg )sepytlla(sdeesrewolfnusdelluh

  • 8/3/2019 Tennessee; Improving Your Backyard Wildlife Habitat

    11/16

    11

    The Eastern Bluebird is a

    songbird native to Tennessee

    whose bright coloration

    and cheerul song make it a avorite

    among most landowners. To at-

    tract bluebirds around your home,it is necessary to provide them with

    nesting cover. Bluebirds primarily

    are insectivorous birds and typically

    do not eed at bird eeders. Thus, the

    best way to attract them is by erecting

    nest boxes.

    Over the past ew decades,

    bluebirds have experienced a decline

    in numbers. A primary reason or this

    decline is a lack o suitable nesting

    sites. Naturally, bluebirds nest in

    cavities o trees or ence posts created

    by woodpeckers or decay. In many

    areas, suitable nesting cavities can be

    scarce or even non-existent. Repro-

    duction in these areas is predictably

    low. In addition, the house sparrow

    and European starling (two exotic

    species rom Eurasia) now compete

    with bluebirds or nesting cavities.

    As a result, even i suitable nesting

    cavities are available, use by bluebirds

    is limited because o the aggressive

    nature o the non-native birds.

    Beore you build and erect nest

    boxes or bluebirds, there are some

    important guidelines that should be

    ollowed. To keep competition rom

    starlings at a minimum, dimensions o

    nest boxes should be:

    Floor 5 inches x 6 inches

    Back 6 inches x 18 inches

    (extra length to

    allow nailing on

    post or tree)

    Front 6 inches x 9 inches

    Sides 5 inches x 9 inchesin the ront and 10

    inches in the back

    Top 6 inches x 7 inches

    (to provide a little

    overhang in the ront)

    Entrance hole 11/ inches in

    diameter; 6 inches

    above the foor o

    the box

    Generally, 3/4-inch lumber

    is used to construct nest boxes.

    The dimensions can vary slightly

    EXCEPT or the entrance hole,

    which must be 11/ inches. I you

    make the entrance hole smaller than11/ inches, bluebirds will not be able

    to enter. By making the entrance

    hole no larger than 11/ inches, the

    box is somewhat species selective,

    excluding larger, unwanted birds,

    such as the European starling.

    House sparrows still may be a

    problem; however, since they are

    unprotected, invasive, non-native

    birds, you may shoot them or

    destroy their nests at will. Also, nest

    boxes or bluebirds should NOT

    have a perch installed just below the

    entrance hole. Bluebirds do not need

    perches, which only serve to attract

    house sparrows. It is important to

    construct nest boxes so it is possible

    to get into them or cleaning and

    destroying nests o unwanted birds

    such as house sparrows. This is

    accomplished by attaching a hinge

    to the top o the ront panel o the

    box. A small wood-screw inserted

    hal-way into the bottom o the ront

    panel can serve as a handle to pull

    the ront o the box up and open so

    you can get inside. Install a small

    clasp to keep the ront panel closed.

    To allow or drainage and airfow, a

    ew 1/8-inch holes may be drilled into

    the bottom o the box and at the top

    o the sides. Other structures (e.g.,

    gourds, cans, etc.) also can serve as

    nesting cavities or bluebirds. Just

    be sure to keep the entrance hole 11/

    inches in diameter.

    Bluebirds preer open

    spaces, such as pastures, orchards,roadsides, yards and parks where

    insects are abundant. Creating open-

    type areas around or near your home

    will increase the amount o oraging

    habitat or bluebirds. When nest

    boxes are placed in these optimal

    habitats, bluebird populations can

    increase quite rapidly. Mount nest

    boxes on ence posts or tree trunks

    4 to 6 eet above the ground acing

    open terrain, optimally acing east

    to protect the entrance hole rom

    prevailing wind and rain. Predator

    guards (conical shields) made o

    sheet metal can be wrapped aroundthe tree or post just below the nest

    box to minimize predation rom

    house cats, snakes and raccoons.

    To help keep wasps out o bluebird

    boxes, try nailing a piece o the

    sticky strips commonly sold or

    fies on the inside o the box top.

    Nest boxes should be erected in

    late winter, since nesting may begin

    as early as late February or early

    March. Because o the territorial

    nature o bluebirds, boxes should be

    at least 100 yards apart.

    Bluebirds may produce two

    to our broods per year. Females

    will lay a clutch o our to six

    light-blue eggs and incubate them

    approximately 1 days. Upon

    hatching, bluebird chicks remain in

    the nest or about 15 days beore

    fedging. Once the fedglings leave

    the nest, the male tends to them or

    several days while they learn to fy

    and search or grasshoppers, crickets,

    beetles, fies and other insects.

    Meanwhile, the emale prepares the

    nest or a second clutch.

    Bluebirds that nest in Tennessee

    typically stay near their nesting

    area all year, while bluebirds rom

    northern states migrate southward

    during winter. Over-wintering here

    in Tennessee can be a problem or

    bluebirds during harsh winters, as

    some winter mortality may occur.

    On particularly cold nights, several

    bluebirds may roost together in a

    single nest box to conserve heat.

    SPECIAL CASE: The Eastern Bluebird

  • 8/3/2019 Tennessee; Improving Your Backyard Wildlife Habitat

    12/16

    1

    kill exotic bird pests such as starlings and house

    sparrows. I you consider squirrels a problem

    at bird eeders, provide them with some oodo their own. Unshelled (let on the cob) corn

    skewered on a long nail driven into a tree or post

    sometimes will keep their attention away rom the

    bird eeder. I not, squirrel-proo eeders are

    available commercially or you can use your imag-

    ination in squirrel-proong your bird eeder.

    (Hint: metal fashing or vinyl siding wrapped

    around the eeder post usually works. Good luck

    matching wits; squirrels are quite ingenious at

    getting to eeders!)

    Hummingbirds require a special type o

    eeder. Hummingbird nectar is our partswater to one part sugar. It is best to boil water

    beore adding the sugar so it will dissolve well.

    I you make relatively large quantities o this

    solution, store unused portions in the rerigera-

    tor. Hummingbird nectar should not contain

    honey because o the risk o ungal diseases. You

    can eed hummingbirds as long as they visit the

    eeder. You will NOT keep hummingbirds rom

    migrating by keeping eeders out past Labor Day.

    Also, there is no evidence that putting red ood-

    coloring dye in the solution harms humming-

    birds, however, since the saety o ood-coloringdye is in question, it may be best not to use it in

    nectar. Most hummingbird eeders are colored

    red to attract the birds so ood-coloring dye is

    not needed anyway. I your eeder does not have

    any color, you can paint a red fower or put red

    tape around the eeder. CAUTION: sugar water

    will erment when let in the hot sun. Fermented

    nectar is deadly or hummingbirds. Do not put

    out a hummingbird eeder i you are not willing

    to clean it weekly. Washhummingbird eeders

    using hot water with a little vinegar added to

    discourage mold. Hummingbird eeders should

    be scrubbed with a bottlebrush and rinsed thor-

    oughly beore relling with nectar. I insects

    are attracted to your hummingbird eeder, dont

    despair; in addition to nectar, hummingbirds eedupon insects or protein.

    Nest boxes are another structural com-

    ponent important in improving wildlie habitat

    around your home. Although most people associ-

    ate nest boxes with bluebirds, many other wildlie

    species (including mammals) benet also. Spe-

    cies such as gray squirrels, fying squirrels, bats

    and screech owls will accept and use nest boxes.

    In act, all o the cavity-nesting species listed

    previously may be ound in nest boxes i dimen-

    sions are appropriate (Table 4). Nest boxes or

    birds should be erected in late winter, awaitingarrival o spring migrants. Nest boxes should be

    inspected, cleaned out and repaired i necessary

    beore each nesting season. While it is important

    that nest boxes be inspected prior to the nesting

    season, you should not inspect the boxes once

    birds (or other wildlie) have begun using them.

    By doing so, you risk causing the birds todesert

    their nest and/or young. The exception to this

    is when unwanted, invasive species (e.g., house

    sparrows and starlings) use your nest boxesin

    which case their nests should be destroyed. Ater

    chicks fedge, do not try to catch them, even ithey are lying on the ground, seemingly helpless.

    The adults are nearby, waiting or you to leave

    and quit bothering them. It is best to leave the

    animals alone and let nature take its course.

    For those interested in providing bats

    with suitable roosting sites, a new bat house

    has been designed by personnel rom the Daniel

    Boone National Forest in Kentucky (Figure 10).

    These post bat houses reportedly are being

    used at a much higher rate than previous designs,

    as they are more like the bats natural summer

    roost sites. Dan Dourson and John MacGregor

    o the Daniel Boone National Forest recom-

    mend placing bat houses in the ollowing habi-

    tats: upland orest stands with an open canopy

    on slopes acing south or southwest; small

    openings along edge-habitat near ponds; along

    riparian zones (streams and creeks), orest roads,

    powerline rights-o-ways; or the edge o orest

    clearcuts and small orest gaps. Relatively open

    Figure 9. Fly-through eeders are popular with many peopleand attract a diversity o bird species.

  • 8/3/2019 Tennessee; Improving Your Backyard Wildlife Habitat

    13/16

    13

    ,seicepsefildliwsuoiravrofsexobtsenfosnoisnemiD-4ELBAT.tatibahderreferpdnadnuorgevobadecalpebdluohsyehtthgieh

    foroolFytivaC

    fohtpeDytivaC

    ecnartnE

    evobaroolf

    foretemaiDecnartnE

    evobathgieH

    rodnuorG)W(retaW

    derreferP

    tatibahsedoc

    seicepS sehcnI sehcnI sehcnI sehcnI teeF

    nerWesuoH 4x4 8-6 6-4 4/11-1 01-5 7,2eedakcihCaniloraC 4x4 9 7 8/11 51-5 2

    nerWskciweB 4x4 8-6 6-4 4/11 01-5 7,2

    esuomtiTdetfuT 4x4 9 7 4/11 51-5 2

    rekcepdooWynwoD 4x4 9 7 4/11 51-5 2

    relbraWyratonohtorP 4x4 6 4 8/31 )W(,21-5 5,3

    sehctahtuN 4x4 9 7 8/31 51-5 2

    nerWaniloraC 4x4 8-6 6-4 2/11* 01-5 7,2

    dribeulBnretsaE 4x4 21-8 01-6 2/11* 6-5 1

    wollawSeerT 5x5 8-6 6-4 2/11* 03-01 1

    rekcepdooWyriaH 6x6 51-21 21-9 8/51 02-21 2

    detserC-taerG

    rehctacylF6x6 01-8 8-6 4/31 01-8 2,1

    dedaeh-deR

    rekcepdooW6x6 21 9 2 02-01 2

    nitramelpruP 6x6 6 1 4/12 02-01 1

    rekcilF 7x7 81-61 61-41 2/12 03-6 2,1

    osla(lwOhceercSdnalerriuqsyarg

    )lerriuqsgniylf

    8x8 51-21 21-9 3 03-01 2

    lertseKnaciremA 8x8 51-21 21-9 3 03-01 4,1

    nwOnraB 81x01 81-51 4-0 6 81-21 4

    kcuDdooW 21x21 22 71 lavo4x3 )W(,02-01 5,3

    ebeohPnretsaE 6x6 (6 2) (2) 21-8 02-8 8,7

    wollawSnraB 6x6 (6 2) (2) 21-8 02-8 8,7

    niboR 8x6 (8 2) (2) 51-6 01-5 7

    .revoytivacehtekatyamsgnilratsehtsehcni1revoretemaidfi;deriuqertnemerusaemesicerP*1 detsaerb-etihwdna)4/11(hctahtuNdetsaerb-deR,)8/11(sehctahtuNymgyPdnadedaeh-nworB

    egaruocsidyametairporppaerehwsezisgnineporellamseht,revewoH.xobemadehtesusyawlalliw)8/31(hctahtun.sworrapsesuoHybesu

    2 .neposediseromroenO3 :erehdetsilsepyttatibahehtotsrefer4elbaTfonmuloctsalehtnisrebmunehT.sedoctatibahderreferP

    .sesruocflogrosdleif,serutsap,)seertybyltnenamrepdedahston(nusehtnisaeranepO.1.sdoowfoegdeehtrosgniraelcdnaldooW.2

    .retawecafdluohsecnartneeht,dnalnofiro,retawevobA.3.selpeetshcruhcrosrewotretaw,solis,snrabfostrapdesu-elttilnihgihro,eertegralfosknurtnO.4

    .spmaws,syellavrevirdedoolF.sdnalmottobtseroftsioM.5.egdedoowdnasdoownepoyrD.6

    .sgnidliubraen,sdraykcaB.7.snrab,segdirbrednu;retawraeN.8

  • 8/3/2019 Tennessee; Improving Your Backyard Wildlife Habitat

    14/16

    14

    areas where the bat houses can receive more

    sunlight are preerred. Bat houses are less

    likely to be used when placed near homes,

    barns or other buildings.

    WaterWater sources are provided in a variety

    o ways, ranging rom a simple birdbath to

    a small pond created with wildlie in mind.

    Regardless o source, water is an essential

    component o wildlie habitat and provides

    necessities or wildlie in many ways. Obvi-

    ously water provides rereshment or thirsty

    animals; however, there are other benets

    you may not realize. Depending on the size

    and nature o the water source, some wildlie

    species may nd ood there. Raccoons orage

    or crawdads in shallow pools and creeks;

    herons and kingshers eed upon small sh;and rogs, dragonfies, whippoorwills, tree

    swallows, purple martins, nighthawks and

    bats orage on the many fying insects ound

    above a small pond. For some species (e.g.,

    many rogs, toads and salamanders), water is

    necessary or reproduction, providing a place

    to lay eggs and or tadpoles to develop. In

    addition, some wildlie species require water

    or a substrate to live in (i.e., sh, many

    turtles, rogs and salamanders). A pond is a

    unique ecosystem, providing habitat or an

    array o wildlie species that simply wouldnot be there otherwise and enhancing condi-

    tions or many terrestrial species.

    Whether you have a birdbath, a small

    pond 5 eet in diameter or a 1/4-acre pond,

    there are some things to consider and keep in

    mind. It is best i the water source is located

    in the shade at least part o the day. Water

    will remain cooler and not become stagnant

    as quickly as i it were in ull sunlight all

    day. To make a small pool most attractive

    or wildlie, make sure there is some cover

    nearby (within about 10-0 eet). This willmake the animals using the water source eel

    more secure and render it available to more

    species. Keep birdbaths at least 3 eet above

    ground level (or protection rom cats) and

    have a tree or some type o perch nearby

    or birds. In addition, the edge and bottom

    o birdbaths should be rough to provide

    secure ooting. Water depth should be shal-

    low, especially around the edges, so birds can

    3'

    Poplar or pine

    Galvanized screws

    Bats enterand exit

    4" x 4"rough-cut

    oak.12 - 16ft. long.

    2 1/2 - 3 ftin ground

    Shingle roofing

    Screened vent1/2" to 3/4"in diameter

    Cut top of4" x 4" post

    Slightly roundedpost corners

    Additional cutscould be madeto increaseroosting area.

    3/4" wood spaceattached withlug bolts.

    Figure 10.Kentucky bat houses reportedly receive more

    use than previous designs.

  • 8/3/2019 Tennessee; Improving Your Backyard Wildlife Habitat

    15/16

    15

    get in and splash about. I the edge or side o

    the water source is too steep, many birds will not

    use it. I you have a small pond, make sure part

    o the bank perimeter is ree o tall vegetation to

    provide a place or birds to approach the water.

    Another important consideration is to keep the

    water fowing or moving or aeration. This can be

    accomplished byallowing the water to run overrocks or by positioning the water intake so that

    it pours into the birdbath or pond. The sound

    o moving water attracts many birds and other

    wildlie that otherwise would not visit the pool.

    It is critical to keep the water in your birdbath

    as clean and cool as possible. Allowing water

    to become stagnant and lled with algae can be

    harmul to wildlie.

    ConclusionImproving wildlie habitat around yourhome can be a very rewarding and invigorating

    experience. While the aesthetic, recreational and

    biological benets may be most obvious, the big-

    gest reward may be the educational experience

    gained by children enjoying wildlie residing in

    and visiting their own backyards. Many olks are

    limited in terms o opportunities to help con-

    serve our wildlie resources. By working toward

    this eort in your own backyard you can make

    the area around your home more interesting and

    attractive, and experience the ruits o your labor

    through an increased abundance and diversity owildlie around you.

    Sources for information regarding backyard

    wildlife management:

    Foote, L. E. and S. B. Jones. 1989. Native shrubs

    and woody vines of the Southeast. Landscaping

    uses and identication. Timber Press. Port-

    land, Oregon.

    Gardening with wildlife. Available rom the Na-

    tional Wildlie Federation, 141 Sixteenth St.,

    N. W., Washington, D. C.

    Henderson, C. 1987. Landscaping for wildlife.

    Minnesota Department o Natural Resources,

    Nongame Wildlie Program. St. Paul, Minne-

    sota.

    Henderson, C. 1995. Wild about birds. Minnesota

    Department o Natural Resources, Nongame

    Wildlie Program. St. Paul, Minnesota.

    Woodworking for wildlife in Tennessee. Available

    rom the Tennessee Wildlie Resources Agency,

    Ellington Agricultural Center, P. O. Box 40747,

    Nashville, TN 3704.

  • 8/3/2019 Tennessee; Improving Your Backyard Wildlife Habitat

    16/16

    PB1633-3M-9/06 E12-4915-00-004-07 07-0038

    Programs in agriculture and natural resources, 4-H youth development, family and consumer sciences, and resource development.University of Tennessee Institute of Agriculture, U.S. Department of Agriculture and county governments cooperating.

    UT Extension provides equal opportunities in programs and employment.

    Visit the UT Extension Web site athttp://www.utextension.utk.edu/