Black guillemot Cepphus grylle

Identification Tips:

Adult alternate

Adult basic

Similar species:

The Pigeon Guillemot is most similar in plumage to the Black Guillemot but their ranges only overlap in Alaska. In all plumages, the Pigeon Guillemot has dark wing linings and a dark wedge intruding into the white wing patch. In breeding plumage the male White-winged Scoter is vaguely similar but has a differently shaped bill and profile, white secondaries rather than coverts, and some white on the face. Murres and razorbill lack the white wing patches.