'Broadbill' definitions:

Definition of 'broadbill'

noun

Tropical American heron related to night herons [syn: boatbill, boat-billed heron, broadbill, Cochlearius cochlearius]

noun

Diving ducks of North America having a bluish-grey bill [syn: scaup, scaup duck, bluebill, broadbill]

noun

Freshwater duck of the northern hemisphere having a broad flat bill [syn: shoveler, shoveller, broadbill, Anas clypeata]

noun

Small birds of the Old World tropics having bright plumage and short wide bills

From: GCIDE

Broadbill \Broad"bill`\, n.
1. (Zool.) A wild duck (Aythya marila, or {Fuligula marila}), which appears in large numbers on the eastern coast of the United States, in autumn; -- called also bluebill, blackhead, raft duck, and scaup duck. See Scaup duck. [1913 Webster]
2. (Zool.) The shoveler. See Shoveler. [1913 Webster]

From: GCIDE

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. (Zool.) A scaup duck. See below. [1913 Webster]
Scaup duck (Zool.), 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 (Aythya affinis), called also little bluebill, river broadbill, and shuffler; the tufted, or ring-necked, scaup duck ({Aythya 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 (Aythya marila), closely resembles the American variety. [1913 Webster]

From: GCIDE

Shoveler \Shov"el*er\, n. [Also shoveller.]
1. One who, or that which, shovels. [1913 Webster]
2. (Zool.) A river duck (Spatula clypeata), native of Europe and America. It has a large bill, broadest towards the tip. The male is handsomely variegated with green, blue, brown, black, and white on the body; the head and neck are dark green. Called also broadbill, spoonbill, shovelbill, and maiden duck. The Australian shoveler, or shovel-nosed duck (Spatula rhynchotis), is a similar species. [1913 Webster]