Birds

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Birds

Transcript of Birds

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Birds

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The evolutionary origin of birds has always been a subject of considerable debate. Birds and flying reptiles have delicate, lightweight skeletons which do not fossilize well - hindering studies on how the birds evolved. The first bird fossil to be found was a feather, which was discovered in 1860 in a limestone quarry in Bavaria. The feather was given the name Archaeopteryx, which is Greek for 'ancient feather'. A year later an almost complete skeleton of Archaeopteryx was discovered in the same quarry, with the feathers and other fine structures preserved in minute detail.

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The skeleton showed several features which are intermediate between reptiles and birds, suggesting that Archaeopteryx and the other birds evolved from a dinosaur similar to the Velociraptor featured in the film 'Jurassic Park'. Seven partial or complete Archaeopteryx skeletons have now been found, and they are still among the most famous, and scientifically valuable, fossils.

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Feathers make the bird

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Alabama Birds

Checklist of Alabama Birds - Geographical & Seasonal Distribution

Alabama Ornithological Society

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Order Gaviiformes

LoonsSpecialized for swimming and diving. Come ashore

only to breed. In flight, head lower than body. Wingbeats fast. Eat fish, crustaceans, some water

plants.

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Common loon – Gavia immer

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Order Podicipediformes

GrebesSwimming and diving birds, smaller than loons. Flat

lobes on toes. Short legs far back on body. Flight weak and hurried. Taxi before becoming airborne. Dive and

pursue aquatic animals.

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Pied-billed grebe – Podilymbus podiceps

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Order Pelecaniformes

Pelicans and their AlliesLarge, aquatic fish-eating birds with all four toes webbed. Most nest in large colonies and are silent

outside breeding grounds.

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American white pelican – Pelecanus erythrorhynchos

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White pelicans in flight.

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Brown pelican

Pelecanus occidentalis

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Brown pelican diving

For fish.

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Double-crested cormorant – Phalacrocorax auritus

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Double-crested cormorant

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Anghinga (snake bird) – Anhinga anhinga

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Order Anseriformes

WaterfowlAquatic, with webs between the three front toes. Long necks and narrow pointed wings. Flattened bills with

tooth-like edges that serve as strainers.

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Geese

Subfamily Anserinae

Tribe Anserini

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Canada goose – Branta canadensis

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Snow goose – Chen caerulescens

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Surface-feeding Ducks (Dabblers)

Subfamily Anserinae

Tribe Anatini

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Mallard – Anas platyrhynchos

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Summer Distribution

Winter Distribution

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Pintail – Anas acuta

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Blue-winged teal

Anas discors

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Blue-winged teal

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Green-winged teal – Anas crecca

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Perching or Wood Ducks

Subfamily Anserinae

Tribe Carinini

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Wood duck (drake) – Aix sponsa

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Female wood duck

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Wood duck

distribution

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Bay Ducks (Divers)

Subfamily Anatinae

Tribe Aythyini

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Redhead – Aythya americana

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Redhead distribution

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Canvasback – Aythya valisneria

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Ring-necked duck – Aythya collaris

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Ring-necked duck

distribution

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Lesser scaup – Aythya affinis

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Lesser scaup

distribution

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Sea Ducks

Subfamily Anatinae

Tribe Mergini

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Common goldeneye – Bucephala clangula

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Common goldeneye

distribution

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Canvasback distribution

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Bufflehead – Bucephala albeola

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Bufflehead distribution

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Hooded merganser – Lophodytes cucullatus

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Hooded merganser distribution

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Order Falconiformes

Eagles, Hawks, Falcons, Vultures

Diurnal birds of prey. Strong beaks and talons.

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Turkey vulture – Cathartes aura

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Turkey vulture in flight

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Black vulture – Coragyps atratus

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Vultures (two black, one turkey) feeding on carrion.

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Mississippi kite

Ictinia mississippiensis

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Swallow-tailed kit

Elanoides forficatus

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Cooper’s hawk

Accipiter cooperii

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Cooper’s hawk in flight

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Sharp-shinned and Cooper’s hawks

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Sharp-shinned hawk

Accipiter striatus

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Northern harrier – Circus cyaneus

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Red-tailed hawk

Buteo jamaicensis

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Red-tailed hawk in flight

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Red-shouldered hawk

Buteo lineatus

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Red-shouldered hawk in flight

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Golden eagle

Aquila chrysaetos

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Bald eagle

Haliaetus leucocephalus

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Osprey – Pandion haliaetus

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American kestrel – Falco sparverius

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Peregrine falcon- Falco peregrinus

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Order Galliformes

Gallinaceous BirdsHeavy-bodied, chicken-like land birds. Short, heavy

bill. Wings short and rounded. Legs rather long. Flight not fast, but can burst into full flight from a

sitting position. Capable runners that forage on the ground. Males of many species have elaborate

courtship displays.

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Northern bobwhite – Colinus virginianus

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Male bobwhite

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Wild turkey

Meleagris gallopavo

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Order Ciconiiformes

Herons and their alliesWading birds with long legs, neck and bill. Most feed

on aquatic animal life in shallow water. Some have long plumes in the breeding season. Wings are broad

and rounded, tail short.

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Great blue heron

Ardea herodius

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Great egret

Casmerodius albus

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Snowy egret – Egretta thula

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Cattle egret – Bubuculus ibis

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Little blue heron – Egretta caerulea

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Louisiana heron – Egretta tricolor

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Green heron

Butorides striatus

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White ibis – Eudocimus albus

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Wood stork

Mycteria americana

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Order Gruiformes

Cranes and their AlliesHighly diverse group of wading birds with long legs.

Other features such as size, body outline, bill shape and neck length are highly variable.

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Sandhill crane

Grus canadensis

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Sandhill crane

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Whooping crane

Grus americana

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Clapper rail Rallus longirostris

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King rail – Rallus elegans

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Common moorhen – Gallinula chloropus

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Purple gallinule – Porphyrula martinica

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American coot – Fulica americana

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Order Charadriiformes

Shorebirds and GullsDiverse group of wading or swimming birds. mOst are

white, gray or brown, with long pointed wings and webbed feet. Highly migratory. Most feed along

shores, a few inland.

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Killdeer – Charadrius vociferus

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American woodcock – Scolopax minor

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Common snipe – Gallinago gallinago

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Sanderling – Calidris alba

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Herring gull

Larus argentatus

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Laughing gull – Larus atricilla

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Forster’s Tern

Sterna forsteri

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Caspian tern – Sterna caspia

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Common tern – Sterna hirundo

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Order Columbiformes

Pigeons and DovesSmall-headed, short-legged, swift-flying birds with

pointed wings and fanned or tapered tails. All species coo, bob heads when walking. Eat grains, small seeds,

acorns and fruit.

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Mourning dove – Zenaida macroura

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Rock dove – Columba livia

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Order Strigiformes

OwlsLarge-headed, short-necked birds of prey. Mostly

nocturnal. Large eyes are fixed in sockets, so the entire head moves as the bird shifts its gaze. Flat, round or heart-shaped “facial disk” conceals the large external

ear flaps. All fly silently, hunting for rodents and other mammals. Calls are distinctive hoots, wails, or

whistles.

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Eastern screech owl – Otus asio

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Great horned owl

Bubo virginianus

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Barn owl – Tyto alba

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Barn owl

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Barred owl

Strix varia

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Order Caprimulgiformes

GoatsuckersNocturnal insect-eaters with large, flat heads, small

bills, enormous mouths, and distinctive white patches in the wings and tail. Many are named for their call.

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Chuck-will’s-widow – Caprimulgus carolinensis

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Whip-poor-will – Caprilmulgus vociferus

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Common nighthawk – Chordeiles minor

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Order Apodiformes

Swifts and Hummingbirds

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Ruby-throated hummingbird – Archilochus colubris

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Order Coraciiformes

KingfishersLarge-headed, short-tailed birds that dive for fish,

which they catch with their long sharp beaks. Perch motionless in the open, over water. Short legs.

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Belted kingfisher – Ceryle alcyon

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Order Piciformes

WoodpeckersHave a strong bill, sharply pointed for chipping and digging into tree trunks or branches for wood-boring insects. Still tail used as a prop. Most species “drum”

on resonant limbs, poles, or drainpipes. Flight is usually undulating, with wings folded against the body

after each series of flaps. Usually nest in a cavity chiseled into a large branch or trunk.

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Yellow-shafted flicker

Colaptes auratus

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Pileated woodpecker

Dryocopus pileatus

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Red-bellied woodpecker

Melanerpes carolinus

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Red-headed woodpecker

Melanerpes erythrocephalus

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Red-cockaded woodpecker

Picoides borealis

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Downy woodpecker

Picoides pubescens

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Hairy woodpecker

Picoides villosus

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Yellow-bellied sapsucker

Sphyrapicus varius

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Order Passeriformes

Perching BirdsSmall to medium land birds. All have feet well adapted

for perching: 3 toes in front and 1 long toe behind. Most are singers. Bill shape, feather colors, and habits

are most useful for family identification. Most insectivorous species and some seed and fruit eaters are

highly migratory.

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Eastern kingbird

Tyrannus tyrannus

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The eastern kingbird spends the summer months in North America, and winters in Amazonia.

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Barn swallow

Hirudo rustica

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Purple martin – Progne subis

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Blue jay

Cyanocitta cristata

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American crow – Corvus brachyrhyncos

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Carolina wren – Thryothorus ludovicianus

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Northern mockingbird – Mimus polyglottus

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Brown thrasher – Toxostoma rufum

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American robin - Turdus migratorius

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Eastern bluebird Siala sialis

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Cedar waxwing – Bombycilla cedrorum

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Loggerhead shrike

Lanius ludovicianus

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Red-winged blackbird – Agelaius phoeniceus

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Brown-headed cowbird – Molothrus ater

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Northern cardinal

Cardinalis cardinalis

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Black-capped chickadee – Poecile carolinensis

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House finch

Carpodacus mexicanus

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Indigo bunting – Passerina cyanea

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Eastern towhee – Pipilo erythrophtalmus

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Sparrows