The Cassin’s Auklet, Ptychoramphus aleuticus, is a small, chunky seabird that ranges widely in the North Pacific. It nests in small burrows and because of its presence on well studied islands in British Columbia and off California it is one of the better known auks. It is named for John Cassin, a Pennsylvania businessman and naturalist. The Cassin's Auklet is a small nondescript auk. Its plumage is generally dark above and pale below, with a small white mark above the eye. Its bill is overall dark with a pale spot, and its feet are blue. Unlike many other auks the Cassin's Auklet lacks dramatic breeding plumage, remaining the same over most of the year.

Данное издание не является оригинальным. Книга печатается по технологии принт-он-деманд после получения заказа.