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.
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.
This bird, circling over the coast before flying well out to
sea off Tenerife, may be a juvenile Cory's or may be a