['blu:bil]
n.
[鸟]铃凫(因其嘴蓝色而得名)

[ noun ]
diving ducks of North America having a bluish-grey bill
<noun.animal>

Bluebill \Blue"bill`\, n. (Zo["o]l.)
A duck of the genus {Fuligula}. Two American species
({Fuligula marila} and {Fuligula affinis}) are common. See
{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.]

2. (Zo["o]l.) A scaup duck. See below.

{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.


Broadbill \Broad"bill`\, n.
1. (Zo["o]l.) 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}.

2. (Zo["o]l.) The shoveler. See {Shoveler}.