Calonectris edwardsii

Cape Verde Shearwater (Calonectris edwardsii) : Cape Verde Shearwater, no subspecies.

Cape Verde shearwaters arrive at breeding grounds in late February to March, after about three months away from their range, nesting in voids in cliffs and offshore rocks, as well as under large rocks. Their diet consists mainly of sardines and squid. It is often found around the Cape Verde Islands during the breeding season. After the nesting period, these birds disperse over the surrounding Marine area and are often found in upwelling areas of Senegalese waters.

Island-wide survey results for the 2015 breeding season showed 6,312 breeding pairs in Raso and 3,500 birds in Branco (Biosfera not publicly available data). This equates to a total of about 24,000 animals.

Listed on the IUCN Red List of Threatened Species (IUCN)2018 ver3.1 - Near Threatened (NT).

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Breeding grounds: Cape Verde; Non-breeding places: Brazil and Uruguay; Resident birds: Mauritania, Morocco and Senegal; Wandering: Spain (Canary Islands) and the United States.

The Cape Verde shearwater is about 45 cm long and weighs about 700 grams. This species has a thin black bill and a darker head and body than that of the Corey Shearwater. The flight is more typically similar to that of the Shearwater, with a stiffer and faster biwing beat. The overall appearance is that of a smaller, slimmer, more angular seabird than the Mighty Shearwater. The beak is grey with a dark tip, sometimes yellowish or pink. Some individuals are distinctly yellow, but never as bright as the mighty Shearwater. Pink legs, like those of other mighty shearwaters.