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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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.
Manx Shearwater
Manx Shearwater: Small shearwater with brown-black upperparts and white underparts, underwings and undertail coverts. Black cap is darker than back. The bill is dark. Wings are long, slim, and straight. Tail is short and pointed. Feeds on fish and squid. Alternates long glides and rapid wing beats.
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.
Masked Booby
Masked Booby: Large seabird with white body, black trailing edge on wings, pointed black tail. Head has black mask and long, pointed, yellow bill. Legs and feet are yellow-gray. Plunge dives from 40 feet for small squid and flying fish. Alternates strong rapid wing beats with glides.