Galapagos Shearwater vs Sargasso Shearwater

Galapagos Shearwater

Puffinus subalaris

Medium168 gMarine

The Galápagos shearwater has dark brown upperparts, undertail and underwing flight feathers, the rest of the underparts plumage being white. It sometimes has a dark collar. Both sexes are alike, as are the young after fledging. It is a slender-bodied shearwater, about 29–31 cm long, with a wingspan of around 63 cm and weighs 123-225 g. The species closely resembles the tropical shearwater, although the latter is typically blacker and has a longer tail.

ID text from Wikipedia, CC BY-SA 4.0

Photo: Carlos Domínguez-Rodríguez · CC BY 4.0

Sargasso Shearwater

Puffinus lherminieri

Medium193 gMarine

The Sargasso shearwater is on average 30 cm (12 in) in length—about half the size of the great shearwater (Puffinus gravis)—and weigh 170 g. There is some variation between populations, and the normal size and weight range is 30–33 cm (12–13 in) and 150–230 g (5.3–8.1 oz). The wingspan is 64 to 72 centimetres (25 to 28 in), the tail is around 8.5 centimetres (3.3 in) long, the exposed culmen measures 3 centimetres (1.2 in) or slightly less, and the tarsus is around 4 centimetres (1.6 in) in length.

ID text from Wikipedia, CC BY-SA 4.0

Photo: Ashwin Srinivasan · CC BY 4.0

Photos and recordings are credited to their authors under the licence shown. Full profiles: Galapagos Shearwater and Sargasso Shearwater.