Found 2 items, similar to Scaup duck.
English → English (WordNet) Definition: scaup duck scaup duck n : diving ducks of North America having a bluish-gray bill [syn: scaup, bluebill, broadbill]
English → English (gcide) Definition: Scaup duck Scaup \Scaup\ (sk[add]p), n. [See Scalp a bed of oysters or mussels.] 1. A bed or stratum of shellfish; scalp. [Scot.] [1913 Webster] 2. (Zo["o]l.) A scaup duck. See below. [1913 Webster] Scaup duck (Zo["o]l.), any one of several species of northern ducks of the genus Aythya, or Fuligula. The adult males are, in large part, black. The three North American species are: the greater scaup duck (Aythya marila , var. nearctica), called also broadbill, bluebill, blackhead, flock duck, flocking fowl, and raft duck; the lesser scaup duck (A. affinis), called also little bluebill, river broadbill, and shuffler; the tufted, or ring-necked, scaup duck (A. collaris ), called also black jack, ringneck, ringbill, ringbill shuffler, etc. See Illust. of Ring-necked duck, under Ring-necked. The common European scaup, or mussel, duck (A. marila), closely resembles the American variety. [1913 Webster]