from
The Collaborative International Dictionary of English v.0.48
Poachard \Poach"ard\ (p[=o]ch"[~e]rd), n. [From {Poach} to
stab.] [Written also {pocard}, {pochard}.] (Zool.)
(a) A common European duck ({Aythya ferina}); -- called also
{goldhead}, {poker}, and {fresh-water widgeon}, or
{red-headed widgeon}.
(b) The American redhead, which is closely allied to the
European poachard.
[1913 Webster]
{Red-crested poachard} (Zool.), an Old World duck ({Branta
rufina}).
{Scaup poachard}, the scaup duck.
{Tufted poachard}, a scaup duck ({Aythya cristata}, or
{Fuligula cristata}), native of Europe and Asia.
[1913 Webster]