General
Streaked Shearwater: Large shearwater with scaled, dark gray-brown upperparts and white underparts. White head has variable light to heavy pale brown streaks. Uppertail coverts are sometimes white, forming a pale "horseshoe." Forehead is white. Bill is pale. Legs and feet are pink. Sexes are similar.
Range and Habitat
Streaked Shearwater: Breeds in large numbers on islands of southern Japan. In autumn may be seen in Hawaii and, occasionally, off the coast of California. Pelagic, comes ashore only to breed.
Breeding and Nesting
Streaked Shearwater: One white egg is laid in a burrow. Incubation ranges from 47 to 58 days and is carried out by both parents.
Foraging and Feeding
Streaked Shearwater: Feeds on small fish and squid. Plunge dives in shallow water for food or swoops down to snatch prey from the water surface.
Vocalization
Streaked Shearwater: Silent at sea.
Similar Species
Streaked Shearwater: Cory's Shearwater lacks streaks on head and distinctive, dark- streaked patch on underwing.