Bird Encyclopedia
Search and identify 1,000+ birds — with size, habitat, diet, voice, behavior, and the field marks that tell them apart.

Blue-winged Warbler
A bright yellow warbler with blue-gray wings, white wingbars, and a black eyeline, whose expanding range increasingly overlaps and hybridizes with the closely related Golden-winged Warbler.
songbird
Blue Jay
A bold, crested songbird in vivid blue, white, and black, known for its loud calls and habit of caching acorns.
songbird
Blue Grosbeak
A stocky, deep-blue finch-like bird with rich chestnut wingbars and a heavy silver bill, favoring brushy fields across the southern and central United States.
songbird
Blue-winged Teal
A small, dabbling duck famous for the striking white crescent on the male's face and its brilliant powdery-blue wing patches exposed in flight.
waterfowl
Blue-headed Vireo
A crisply marked eastern vireo with a blue-gray head, bold white spectacles, and a slow, sweet, warbling song.
songbird
Eastern Bluebird
A small thrush with vivid blue upperparts and a warm rusty-orange breast, often seen perched on fences and wires over open fields.
songbird
Western Bluebird
A vivid blue thrush of the West with a blue (not orange) throat, chestnut breast and shoulders, and often a chestnut patch on the back.
songbird
Dusky Grouse
A large, sooty gray mountain grouse of the interior Rockies, named for the male's low hooting display and yellow-orange inflatable neck sac.
gamebird
Mountain Bluebird
A slender thrush of open western landscapes, the male an unbroken sky blue overall without any orange or chestnut markings.
songbird
Blue-gray Gnatcatcher
A slender, blue-gray songbird with a long, expressive black-and-white tail, constantly flicking as it hunts tiny insects.
songbird
Yellow Warbler
A brilliant, all-yellow warbler of streamside willows and wet thickets, with breeding males showing fine rusty streaks on the breast.
songbird
Black-throated Blue Warbler
A strikingly two-toned warbler; males are deep slate-blue above and jet-black below with a white belly, while females are plain brownish-olive with a small white wing spot.
songbird
Blue-throated Mountain-gem
One of North America's largest hummingbirds, renowned for its brilliant blue throat, bold facial stripes, and loud, squeaky calls.
hummingbird
Common Yellowthroat
A skulking marsh warbler with a bright yellow throat, best known for the male's bold black facial mask and witchety-witchety-witchety song.
songbird
Yellow-billed Magpie
A California endemic magpie nearly identical to the Black-billed Magpie but distinguished by its bright yellow bill.
songbird
Yellow-throated Vireo
A canopy-dwelling eastern vireo with a bright yellow throat and spectacles, olive back, and a slow, burry song.
songbird
Yellow-rumped Warbler
An abundant, adaptable warbler nicknamed 'butter-butt' for its bright yellow rump, able to survive winter farther north than most warblers by eating berries.
songbird
Yellow-bellied Flycatcher
The brightest and most yellow of the eastern Empidonax flycatchers, breeding in boggy boreal forest and giving a soft, plaintive whistled call.
songbird
Yellow-breasted Chat
A large, oddly proportioned warbler relative with a bright yellow breast and a bizarre, varied song of whistles, cackles, and mimicry.
songbird
Yellow-billed Cuckoo
Nicknamed the 'rain crow,' this secretive, elegant forest bird is renowned for its distinctive guttural calls and specialized appetite for hairy caterpillars.
other
Yellow-headed Blackbird
A striking marsh blackbird with a brilliant yellow head and breast on males, forming dense breeding colonies over open water.
songbird
Yellow-throated Warbler
A gray-backed warbler with a bright yellow throat and bold black-and-white face pattern, well adapted for creeping along bark and probing pine needle clusters and Spanish moss.
songbird
Yellow-bellied Sapsucker
A quiet, migratory woodpecker known for drilling neat rows of small holes in tree bark to feed on the flowing sap.
woodpecker
Green Jay
A dazzlingly colored jay of south Texas brushlands with a green back, sky-blue head markings, and lemon-yellow outer tail feathers.
songbird