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Brief #
All-dark plumage and a white rump.
Description #
It has all-dark plumage and usually a white rump. In Europe, it can be readily distinguished from the European storm petrel and Wilson's storm petrel by its larger size, forked tail, different rump pattern, and flight behavior.
Measurements #
Length: 18 - 21 cm
Wingspan: 43 - 48 cm
Weight: 40 - 50 g
Gallery #
