A relatively large, heavy-bodied shearwater of the Atlantic. Adult is mostly white underneath with white wing linings framed by dark gray under-primaries and border on the lead edge of the underwing. Almost entirely gray to gray-brown above with slightly darker wingtips; head is gray-brown cap and nape with dusky sides of neck. Tail is blackish, contrasting with pale tips of upper tail coverts. Unlike other shearwaters, which have dark or pinkish bills, Cory's Shearwaters have bills that are mostly dull yellow with a dusky tip. Wings are generally held angled at the wrist in flight.
Length: 46 (cm) Wingspan: 112 (cm)
Open ocean, rarely seen from shore.
Nests on oceanic islands, laying one egg inside burrow. At sea, note slow, purposeful flight.
Plunge-dives or picks food from water's surface; eats a variety of fish, squid, other small aquatic organisms, and scraps. Often feeds at night.
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