An auk is a seabird with a heavy body and short tail.
auk in British English
(ɔːk)
noun
1.
any of various diving birds of the family Alcidae of northern oceans having a heavy body, short tail, narrow wings, and a black-and-white plumage: order Charadriiformes
See also great auk, razorbill
2. little auk
Word origin
C17: from Old Norse ālka; related to Swedish alka, Danish alke
auk in American English
(ɔk)
noun
any of a number of related diving alcidine shorebirds of northern seas, with a heavy body, webbed feet, a short tail, and short wings used as paddles
Word origin
dial. alk < ON alka < IE base *el-, *ol-, echoic of water-bird cry > L olor, swan