• WordNet 3.6
    • n Aythya canvasback; redhead; pochard; etc.
    • ***


In literature:

The lesser scaup, or little blue-bill (=Aythya affinis=) has a white speculum also, but the sheen of the head and neck is purple.
"Game Birds and Game Fishes of the Pacific Coast" by Harry Thom Payne

In news:

Aythya collaris Average length: M 17", F 16.6" Average weight: M 1.6 lbs.