bluebill

Noun

blue=bill

WORDNET DICTIONARY

bluebill(n = noun.animal) broadbill, scaup, scaup duck - diving ducks of North America having a bluish-grey bill;

is a kind of duck

is a member of aythya, genus aythya

has particulars: aythya marila, greater scaup, aythya affinis, lake duck, lesser scaup, lesser scaup duck

bluebill, n.

A duck of the genus Fuligula. Two American species (Fuligula marila and Fuligula affinis) are common. See Scaup duck. [1913 Webster]