CorysShearwater

May 30, 2017 – Cory’s Shearwater, Atlantic Shearwater, Mediterranean Cory’s Shearwater, Mediterranean Shearwater, North Atlantic Shearwater, or Scopoli’s Shearwater (Calonectris diomedea)

Nesting mostly on cliffs and islands in the Mediterranean, these shearwaters also breed on the Canary Islands, Salvage Islands, Berlengas Islands, and the Azores. They winter off South Africa into the southwest Indian Ocean and off the east coasts of North and South America. Eating fish, squid, crustaceans, and scraps from fishing boats, they pluck prey from the surface of the water or just below it. They breed in colonies, which may include other seabird species, building their nests inside long burrows or crevices in rocks. Pairs are probably monogamous and seem to reuse nest sites for multiple years. Both parents incubate the single egg in alternating weeklong shifts. The chicks reach breeding age at between 7 and 13 years old.

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