Tips for using Browse:

Browsing is a valuable way to learn about birds, however it is a brute force approach and not designed for identification. A more sophisticated approach to finding a bird with specific field marks is to use the Step by Step Search. You can also try the Wizard to find a bird, which uses a question and answer approach, but again it does not give you the flexibility of the Step by Step Search.

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Rock Wren
Rock Wren: Medium wren with white-speckled gray upperparts, brown rump, white-over-black eye brow, white throat and breast with fine gray streaks, and buff-yellow flanks and belly. The long tail is buff-and-black barred, and has a pale tip; undertail coverts are white with black bars.
Cactus Wren
Cactus Wren: The Interior adult has black-and-white streaked reddish-brown back, dark crown with distinctive white stripe over eye, white chin, and heavily spotted white underparts with buff wash on sides and belly. Wings and tail are dark with white bars on sides. Bill is long and slightly decurved. Sexes are similar. Juvenile has fewer and paler breast spots and shorter tail. The Coastal adult is similar to the Interior adult with a darker wash on sides and belly.
Canyon Wren
Canyon Wren: Medium wren with rust-brown upperparts, fine white spots on gray-brown back, nape, and crown, white throat and breast, and chestnut belly. Tail is long and brown with thin black bars. Head has a flattened appearance; bill is long, slender, and slightly decurved.
Gray Vireo
Gray Vireo: Medium-sized vireo with gray upperparts, faint white spectacles, dark iris, and dull white underparts. The wings are dark gray with indistinct white bars. The sideways twitching of the tail is unique among vireos and is similar to gnatcatchers. Forages in low undergrowth.
Mountain Chickadee
Mountain Chickadee: Medium chickadee, gray upperparts, black cap and bib, white cheeks and nape, and pale gray underparts. The wings and tail are gray. Bill is black, legs and feet are gray-black. It has a white eyebrow, which differentiates it from all other North American chickadees.
Flesh-footed Shearwater
Flesh-footed Shearwater: This is a large, bulky shearwater with a dark brown body and a darker head and tail. The bill is large and pink with a dark tip. The wings are dark with brown-edged coverts that become paler with wear. The legs and feet are pale pink. It feeds on small fish and squid. It has a slow flight, alternating stiff-winged flapping and gliding near water. The sexes are similar.
Lark Sparrow
Lark Sparrow: Medium sparrow with streaked, gray-brown upperparts and buff underparts with black breast spot. Head has black, white, and chestnut-brown stripes. Tail is long and black with white edges. Short, fluttering flight, alternates rapid wing beats with wings pulled to sides.
Varied Bunting
Varied Bunting: Medium bunting, mostly purple-blue with red wash on throat, breast, back. Nape and eye-rings are red. Bill is gray and slightly curved down. Wings and tail are purple-blue. Female has brown upperparts with buff underparts. Eats seeds and insects. Short flights, alternates rapid wing beats with wings pulled to sides.
Verdin
Verdin: Very small songbird with gray upperparts and pale gray underparts. Face and throat are dull yellow. Wings are gray with red-brown shoulder patches. Black bill, legs and feet. It builds complex sphere-shaped nests using as many as two thousands small twigs.
Swainson's Thrush
Swainson's Thrush: Medium-sized thrush (swainsoni), with dull olive-brown or olive-gray upperparts, pale buff eye-ring, dark moustache stripe, and brown-spotted buff throat and breast, and white belly. Legs and feet are pink-gray. Flies in a swift, direct flight with rapid wing beats.
Lark Bunting
Lark Bunting: Large sparrow, nearly black with large white wing patches, short, white-edged tail, and heavy, blue-gray bill. Forages in groung, low vegetation. Strong flight, alternates shallow wing beats with brief periods of wings pulled to sides. It is the state bird of Colorado.
Red-billed Tropicbird
Red-billed Tropicbird: This slender, white, gull-like seabird is the largest tropic bird. It has long white tail streamers, a white back that is finely barred in black, a black eye stripe curves that upward behind the eye, black primaries, and a red bill. Female resembles the male but is less tinged with red. Feeds on fish and squid. Direct, rapid flight; pigeon like, stiff, shallow wing beats.
Black-tailed Gnatcatcher
Black-tailed Gnatcatcher: Medium gnatcatcher with black cap, blue-gray upperparts, black tail, and pale gray underparts. The bill is short and black. Black tail is edged with white; underside of tail appears mostly black with large white spots near tip when closed. Black legs and feet.
Mountain Quail
Mountain Quail: Large,striking quail with long elegant black head plume, white-bordered rufous-brown face and throat, gray-brown upperparts, blue-gray breast, and rufous-brown belly and sides with distinct white bars. Rapid direct flight, series of several stiff wing beats followed by a short glide.
White Ibis
White Ibis: This coastal species is white overall with pink facial skin, bill, and legs that turn scarlet during breeding season. Black tips on the primary feathers are only seen in flight. Flies in straight line formation with neck and legs outstretched, roosts high in trees and bushes at night.
Yellow-footed Gull
Yellow-footed Gull: Large, dark-backed, white gull with distinctive yellow legs. Bulbous bill is yellow, red spot near tip of lower mandible. Upper wings are dark gray with white spots near tips, white trailing edges. Strong, direct flight with deep, steady wing beats. Rides thermals and updrafts.
Ladder-backed Woodpecker
Ladder-backed Woodpecker: Small woodpecker with black-and-white barred upperparts, shoulders, and wings, underparts are buff-gray with black spots, buff-gray face, red crown, and black forehead, nape, rump, and tail. Outer tail feathers are white barred. Bill, legs and feet are black.
Gilded Flicker
Gilded Flicker: Large woodpecker with dark barred and spotted brown back, brown cap, pale gray face and throat, red moustache stripe, white rump, thick black crescent on upper breast, and black spotted, pale buff underparts. It was named for the gold color of its underwings and tail.
Xantus's Hummingbird
Xantus's Hummingbird: Small hummingbird with glittering green upperparts, head, throat, and breast, black face with distinct white stripe behind eye, and cinnamon-brown belly. Squared tail is rufous. Feeds on nectar and insects. Direct and hovering flight with very rapid wing beats.
Inca Dove
Inca Dove: Small dove with scaled, pale gray-brown upperparts, white throat, and scaled, pale buff (often with pink wash) underparts. The tail is long and squared with a black-bordered gray center and edged in white. Black bill, pink legs and feet. Direct flight with rapid wing beats.
Eurasian Collared-Dove
Eurasian Collared-Dove: Medium dove, pale gray overall with darker cinnamon-brown wash over back. Nape is ringed with half-black collar that does not extend to throat. Wings are mottled gray with dark primaries. Tail is long, broad, edged with white (black near base). Pink legs, feet.
American Redstart
American Redstart: Medium, active warbler with black upperparts and hood, distinctive orange-red patches on wings, sides, and long, fanned tail, and white underparts. Bill, legs, and feet are black. Female has gray head and gray-olive upperparts and white underparts with yellow on flanks and tail. It frequently flashes its colorful wings and tail to flush insects from foliage.
Song Sparrow
Song Sparrow: Medium sparrow, heavily streaked gray-brown upperparts. Dull white underparts have dark central breast spot, thick streaks. Head has brown crown, paler median stripe, pale gray eyebrow, white chin, dark brown moustache stripe. Rust-brown wings. Tail is long, usually tinged rust-brown.
Golden-crowned Sparrow
Golden-crowned Sparrow: Large sparrow, brown-streaked upperparts and plain gray breast. Yellow crown is bordered by a wide black cap; cheek and collar are black. Bill is gray. Wings are brown with two white bars. Short flights, alternates rapid wing beats with brief periods of wings pulled to sides.
Western Meadowlark
Western Meadowlark: This short stocky, ground-dwelling bird has dark-streaked brown upperparts, bright yellow underparts, and a broad black V on the breast. It has a dark brown-and-white striped crown, sharply pointed bill and brown tail with white edges. Feeds mostly on insects but also eats seeds. Flies low, with rapid shallow stiff wing beats followed by short glides. Sexes are similar.
Band-tailed Pigeon
Band-tailed Pigeon: Large dove, small, purple-gray head and broad neck with distinctive, thin white band on nape. Back and wings are purple-gray, underparts grade from purple-gray neck and breast to white belly. Tail is pale gray, dark band at base. Bill, legs,feet are yellow. Swift direct flight.
Warbling Vireo
Warbling Vireo: Small vireo, gray to olive-gray upperparts, white underparts; sides sometimes washed with yellow. Eyes are dark brown, have thick, white eyebrows and faint, dark eye-lines. Gray wings and tail. Legs and feet are blue-gray. Has the largest breeding range of any North American vireo.
Western Screech-Owl
Western Screech-Owl: Small owl (kennicotti), distinct ear tufts, brown- or gray-mottled upperparts, white shoulder spots, streaked, barred underparts. Lightly mottled facial disk, has prominent dark rim. Yellow eyes, dark gray bill. Until recently considered the same species as Eastern Screech-Owl.
Short-eared Owl
Short-eared Owl: Medium owl, light and dark brown mottled upperparts and dark-streaked, pale buff underparts. Head has large, round, pale buff facial disk with fine, brown tinges, black around eyes, and small ear tufts. Eyes are yellow and bill is black. Flight is erratic with flopping wing beats.
Western Grebe
Western Grebe: Large, long-necked grebe with dark gray upperparts, white underparts, gray sides and flanks. Lower face and front of neck are white; black cap extends below eye. Back of neck is black. Eyes are red. Bill is long, thin, and dull olive-yellow. Winter birds are duller gray and juveniles are light gray overall. Wings have white stripes visible in flight.
White-crowned Sparrow
White-crowned Sparrow: Medium-sized sparrow with brown-streaked upperparts, small white throat patch, and plain gray underparts. The white crown has distinct black lines. Wings are brown with two pale bars. Short flights, alternates rapid wing beats with brief periods of the wings pulled to sides.
California Scrub-Jay
California Scrub-Jay: Medium, crestless jay, blue head, wings, tail, gray mask, back, pale gray underparts. Dark-streaked, white throat bordered by dark necklace. Bill, legs, feet are black. Eats grains, fruits, insects, frogs, lizards, and eggs and young of other birds. Flies with steady wing beats. Split from Western Scrub-Jay into two species, the California Scrub-Jay and Woodhouse's Scrub-Jay in 2016 by the American Ornithologist Union.
White-throated Swift
White-throated Swift: Medium-sized swift, mostly brown-black except for white throat, white patches on belly, flanks, white edges on wings. Face is pale gray, has dark eye patch. May be the most rapid flying North American bird, has been seen fleeing from raptors at estimated speeds of over 200 mph.
Sora
Sora: This small rail has dark gray-brown upperparts with black-and-white streaks, gray breast and dark gray flanks and belly with white bars. Gray head has a darker crown and nape and black face, chin and throat. It has a dark-tipped yellow bill. Low, weak and floppy flight over short distances with legs dangling. Feeds on seeds, grasses, insects and snails. Sexes are similar.
Black-legged Kittiwake
Black-legged Kittiwake: This is a medium-sized white gull with pale gray back and upperwings and black wing tips. The bill is yellow and the legs and feet are black. It has a swift, graceful flight, alternating several rapid shallow wing beats with a glide. Hovers over water before diving for prey at the surface. It feeds on marine invertebrates, plankton and fish. The sexes look very similar.
Surfbird
Surfbird: Medium sandpiper, dark gray upperparts marked with rufous, white rump, white underparts marked with distinct black chevrons. Upper breast, head, neck are heavily streaked. Wings are dark with bold white stripes visible in flight. Tail is white with a black triangular tip visible in flight.
Eastern Whip-poor-will
Eastern Whip-poor-will: Medium-sized nightjar with gray-brown-black mottled upperparts and pale gray-black underparts. Throat is black; eyebrows and neckband are white. Tail is long and rounded with large white corner patches. Until recently, this bird and the Mexican Whip-poor-will were combined as the Whip-poor-will.
Wandering Tattler
Wandering Tattler: This medium-sized sandpiper has solid gray upperparts and heavily black-and-white barred underparts. It has a finely streaked face, a dark eye line, long black bill, white eye ring and dull yellow legs and feet. Feeds on insects, larvae, worms and mollusks. Quick, direct flight with rapid wing beats. Sexes are similar.
Short-billed Dowitcher
Short-billed Dowitcher: This large sandpiper has mottled gray, black, brown and red-brown upperparts, white rump, red-brown underparts with spots and bars, a long, straight dark bill and long, dark yellow-green legs. East and west coast birds are heavier barred and spotted, paler underparts and often show white bellies. Diet includes insects and crustaceans. Strong direct flight. Sexes similar.
Western Sandpiper
Western Sandpiper: This small sandpiper has chestnut-brown, scaled upperparts, white underparts dotted with rows of dark chevrons, streaked head with brown wash on face, dark bill with decurved tip, thin white stripes visible on dark wings in flight, black legs and feet, and partial webbing between toes. Eats mostly flies and beetles. Swift direct flight with rapid wing beats. Sexes are similar.
White-winged Dove
White-winged Dove: Medium-sized, stout dove with gray-brown upperparts, gray underparts, and small, black crescent below eye. The wings are dark gray with broad white stripes. Tail is short and brown with white corners. Bill is gray. Legs and feet are red. Fast direct flight with rapid wing beats.
Blue-winged Teal
Blue-winged Teal: This small dabbling duck has a purple-gray head and a distinct white crescent on the face. The upperparts are scaled buff and dark brown; underparts are pale brown with many dark spots. The wings have a green speculum and a pale blue shoulder patch visible in flight. Flight is fast and direct with steady wing beats. It mainly feeds on plants. The sexes look similar.
White-breasted Nuthatch
White-breasted Nuthatch: Large nuthatch, blue-gray upperparts, black crown and nape, and white face, underparts. Tail is dark with white corners. Legs and feet are black. Female is similar but with blue-gray crown and nape. Eats spiders,insects, nuts and seeds. Weak fluttering flight, alternates rapid wing beats with periods of wings drawn to sides.