canvasback
N เป็ด ป่า ของ อเมริกา จำพวก Aythya calisineria
CANVASBACK
CANVASBACK Can "vas *back `, n. (Zoöl.)
can vas back |ˈkanvəsˌbak ˈkænvəsbæk | ▶noun a North American diving duck with a long, sloping black bill, related (and with similar coloring ) to the pochard, common in Eurasia. [Aythya valisineria, family Anatidae. ] ORIGIN late 16th cent.: so named because of the white back of the male.
canvas |back ▶noun a North American diving duck with a long, sloping black bill, related to the common pochard. ●Aythya valisineria, family Anatidae. ORIGIN late 16th cent.: so named because of the white back of the male.