Wild life and nature of Samos, Ikaria & Fournoi

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Cody’s Shearwater (Calonectris borealis)


This shearwater is identifiable by its large size, with a length of 45-56 cm and a 112-126 cm wingspan. It has brownish-grey upperparts, white underparts and a yellowish bill. It lacks the brown belly patch, dark shoulder markings and black cap of the Great Shearwater (Ardenna gravis).


This species lives in the open ocean. It prefers relatively warm waters, warmer than those sought by Great Shearwater. It may occur farther north off of the North American coast in warm-water years. At least off southern New England, it may be seen from shore more often than other shearwaters. It can be found both over continental shelves and far out to sea. This bird nests on islands, often rocky or mountainous.


Mostly composed of fish, squid and crustaceans, but its diet is not very well known. The type of fish eaten include herring and sand lance. At times squid may be the primary food. It also eats crabs and other crustaceans, and on scraps and offal around fishing boats.

Protected Status

This species is listed as Least Concern on the IUCN Red List.

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