Aythya

A North American wild duck ( Aythya valisineria ) having a reddish-brown head and neck a whitish back.

帆布背潜鸭一种北美野鸭 ( 帆背潜鸭 ),头颈呈 红褐色,背呈浅白色.

The dominant species were Tufted Duck ( Aythya fuligula), Black-headed Gull ( Larus ridibundus), Dunlin ( Calidris alpina) and Little Egret ( Egretta garzetta), and the individual number of these 4 species occupied 76% of the total individual number.

其中，风头潜鸭（Aythya fuligula）、红嘴鸥（Larus ridibundus）、黑腹滨鹬（Calidris alpina）和白鹭（Egretta garzetta）为优势种，其数量之和占总数量的76%。