pochard
Concise Oxford English Dictionary © 2008 Oxford University Press:
pochard /ˈpəʊtʃəd, ˈpɒ-/
▶noun (pl. same or pochards) a diving duck, the male of which typically has a reddish-brown head. [Aythya ferina and other species.]
– origin C16: of unknown origin.
'pochard' also found in these Oxford entries:

