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Sooty Shearwater: This large bird has a dark gray-brown body, darkest on the tail and primaries. The under wing coverts are pale. The bill is long and dark, and the legs and feet are black. It eats fish, squid and crustaceans. Its long narrow wings are slightly swept-back. It alternates strong direct flapping with long glides. The sexes are similar.
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Short-tailed Shearwater: This medium-sized shearwater has a dark brown body and traces of white in the center of the upperwings. It has a short dark bill and dark gray feet that trail slightly behind the rounded tail in flight. Feeds primarily on crustaceans. Alternates strong flaps with long glides; often soars for long periods. Sexes are similar.
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Streaked Shearwater: This large shearwater has scaled, dark gray-brown upperparts, white underparts, pale bill and white forehead. White head has variable light to heavy pale brown streaks. Upper tail coverts can be white, forming a pale horseshoe. Legs and feet are pink. Feeds on small fish and squid. Flies with loose angled wings. Light, graceful flapping and gliding. Sexes are similar.
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Stejneger's Petrel: This small petrel has gray-brown upperparts, dark gray rump, white underparts, black head, nape and bill, white face, gray-brown upperwing and black greater coverts. Outer primaries form an M shape across lower back. Blue-gray legs and feet and gray-brown, mottled white tail. Feeds on fish. Rapid erratic flight with fast wing beats followed by arcing glides. Sexes are similar.
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