Cory's Shearwater Calonectris borealis/diomedea

Cory's Shearwaters
Cory's Shearwater
Like all shearwaters, Cory's Shearwater spends most of its life far out at sea, coming ashore only to breed. It lives around Madeira, the Canary Islands and the Azores.
Cory's Shearwater
Cory's Shearwater
Cory's Shearwater
Shearing the water
Cory's Shearwater
Cory's Shearwater
Cory's Shearwater
They are usually silent at sea but when visiting their nesting colonies, mainly at night so they don't attract attention of gulls/predators, they can be very noisy.
Cory's Shearwater
Cory's Shearwater?
Cory's Shearwater
This bird, circling over the coast before flying well out to sea off Tenerife, may be a juvenile Cory's or may be a darker species.