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Alternative name: Greater Shearwater
Length 43-51 cm, wingspan 100-118 cm, weight 715-950 g
 Similar Species
Cory's Shearwater is about the same size with heavier yellow bill, dark head, clean white underwing, and blunt broad wings.
Atlantic Ocean from Cape Horn northward to southernmost Greenland. Annual migration completes a loop from the eastern seaboard of South and then North America before crossing the Atlantic in August. It can be quite common off the south-western coasts of Great Britain and Ireland before flying south along the eastern side of the Atlantic upon the approach of the northern winter.
Pelagic - open ocean, more likely in the Atlantic than other oceans. Breeds primarily on Nightingale Island, Inaccessible Island, Tristan da Cunha, and Gough Island; small numbers also breed on the Falkland Islands.
A gregarious species, it can often be seen in large numbers from ships or headlands.
Feeds on fish and squid, which it catches from the surface or by plunge-diving. It readily follows feeding whales and fishing boats, where it engages in noisy competition for spoils.
Lays one white egg in a small burrow or in the open grass, which it visits only at night to avoid predation by large gulls.
Call: A piercing eeyah usually given when resting in groups on the water.
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