Cory's Shearwater
Calonectris diomedea

f10 @ 1/2500s, ISO:1000, Nikon D3S w 300mm

"Cory's Shearwater," Wikipedia, the free encyclopedia. The Cory's shearwater is a large shearwater in the seabird family Procellariidae. Cory's shearwater feeds on fish, molluscs and offal, and can dive deep (50 feet/15 metres or more) in search of prey. It readily follows fishing boats, where it indulges in noisy squabbles. This is a gregarious species, which can be seen in large numbers from ships or appropriate headlands. The Bay of Biscay ferries are particularly good for this species. It is silent at sea, but at night the breeding colonies are alive with raucous cackling calls.
Offshore, east of Nantucket, Massachusetts