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

Boreal Owl
A small, elusive owl of northern boreal forests with a squarish facial disc and a soft, high-pitched song heard mostly on cold winter nights.
owl
Red-eyed Vireo
A tireless singer of eastern and northern forests, nicknamed the 'preacher bird' for its endless repeated phrases, with a gray cap, white eyebrow, and red eye.
songbird
Black-throated Green Warbler
A bright yellow-faced warbler with an olive-green back and a black throat and bib on breeding males, common in northern conifer and hemlock forests.
songbird
Pyrrhuloxia
A close desert relative of the Northern Cardinal, gray overall with red highlights and a stubby, parrot-like yellow bill, common in arid brushland of the Southwest.
songbird
Mourning Warbler
A skulking gray-hooded warbler of dense northern thickets, whose breeding males show a dark, mourning-veil-like patch on the throat and breast.
songbird
Philadelphia Vireo
The smallest eastern vireo, with a yellow-washed underside and dark eye line, breeding in northern second-growth woodlands and often confused with Warbling Vireo and Tennessee Warbler.
songbird
Common Eider
A large, heavy-bodied sea duck of northern coasts, breeding males are strikingly patterned in black and white with a pale green nape, while females are finely barred brown.
waterfowl
Greater Scaup
A robust diving duck of northern waters, best recognized by its rounded head, pale grey back, and preference for gathering in large, dense flocks on coastal bays and vast lakes.
waterfowl
Snow Bunting
The northernmost-breeding songbird in the world, strikingly white in summer plumage and warm rusty-brown in winter flocks.
songbird