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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Marbled Godwit
Marbled Godwit: Large sandpiper with black-marked, dark brown upperparts, lightly barred, chestnut-brown underparts. Long pink bill has black tip, is slightly upcurved. Pale brown underwings visible in flight. Feeds on crustaceans, mollusks, worms, insects, seeds, berries. Swift and direct flight.
Marbled Murrelet
Marbled Murrelet: Small, chubby seabird with dark brown mottled upperparts and paler, white-tipped brown feathers on underparts, giving a wavy-barred appearance. Bill is dark. Legs and feet are brown. Feeds on fish and crustaceans. Swift direct flight low over the water on rapid wing beats.
MacGillivray's Warbler
MacGillivray's Warbler: Medium-sized warbler with olive-green upperparts and yellow underparts. White eye-ring is broken and slate gray hood extends to upper breast where it darkens to black. It forages for insects on or close to the ground. As it hops, it often flicks its tail from side to side.
Murphy's Petrel
Murphy's Petrel: Large petrel, overall gray or gray-brown body and pale throat. Underwings have pale bars. Legs and feet are pale, toes have black distal webbing. Bill is black. Feeds on squid and crustaceans. Swift flight, alternates several rapid wing beats with long glides. Does not follow ships.
Mottled Petrel
Mottled Petrel: Medium-sized petrel, mostly gray with mottled white markings. Face is gray and white and, throat, upper breast, and undertail are white. Wings have distinct black bars on white undersides. Feeds on small squid and fish. Alternates high soaring arcs and gliding with rapid wing beats.
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.
Monk Parakeet
Monk Parakeet: Medium parakeet, green overall, gray forehead, cheeks, lores, throat. Breast is gray, variably barred by dark edges on feathers. Pale pink bill. Belly; lower back, and rump are yellow-green. Wings are dull green with blue flight feathers. Tail is green above with central blue shafts.
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.
Mountain Bluebird
Mountain Bluebird: Small thrush with brilliant blue back, head, and wings. Throat and breast are paler blue, and belly and undertail coverts are white. Hovers more than other bluebirds and drops on prey from above, also catches insects in flight. Eats mostly insects in the summer.
Mallard
Mallard: Medium-sized dabbling duck with gray body and chestnut-brown breast. The head is green and neck ring is white. Bill is yellow-green. Wing speculum is white-bordered metallic purple-blue. The tail is dark with distinct white edges and two curled black feathers. Legs and feet are orange.
Merlin
Merlin: Small falcon with blue-gray upperparts, white to pale brown underparts with dark streaks. Throat, eye-ring, line above eye are white. Dark gray bill, cere is yellow. Tail is brown or black barred with white tips. Pacific race is dark gray. Prairie race is light gray. Taiga race is a mixture.
Marsh Wren
Marsh Wren: Small wren with lightly barred, warm brown upperparts, black-and-white triangular patch on upper back, and dull white underparts with pale brown sides. Crown is dark and eyebrows are white. Tail is relatively short and dark-barred. Black bill is long and slender. Legs and feet are black.
Mew Gull
Mew Gull: Medium-sized gull with gray back and upperwings, and white head, neck, breast, and belly. Bill is bright yellow. Wings have white-spotted black tips; tail is white. Feet and legs are dull yellow. Graceful, bouyant flight. Undulating, with several rapid wingbeats and a pause.
Mourning Dove
Mourning Dove: Medium-sized dove with gray-brown upperparts and pink-brown underparts. Eyes are dark with a small, black spot beneath. Bill is dark. Wings are gray-brown with black spots and dark primaries. Tail is long and pointed with black-edged white tips on outer feathers. Swift direct flight.