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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Herald Petrel
Herald Petrel: Medium petrel, three color morphs: light, intermediate, and dark. Dark morph is dark gray overall, silver-gray to white base on underwing flight feathers. Light morph has white breast, belly and dark gray upperparts. Intermediate forms exist between light and dark morphs. Gray legs, feet. Split into Herald Petrel and Trindade Petrel (not in North America) by the American Ornithologist Union in 2015.
Hawaiian Petrel
Hawaiian Petrel: This medium-sized, tube-nosed seabird has a white front and cheeks, black upperparts and white underparts. It has a square, medium-length tail and long pointed wings. The diet includes mostly squid, but it also takes fish and crustaceans. It has an erratic, arching and diving flight. The males are slightly larger than the females.
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