尽可能全地收录在北京市境内有现代确切记录的鸟种。 Trying to include all bird species with reliable modern-day records within the range of Beijing Municipality.
凤头潜鸭（Tufted Duck，学名：Aythya fuligula）是一種中等大小的潛鴨，又名泽凫、凤头鸭子、黑头四鸭。
青头潜鸭（學名：Aythya baeri）又名东方白眼鸭、白目凫、青头鸭。
Edited by Zhuofei Lu, some rights reserved (CC BY-SA)
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