ヒドリガモ
The American wigeon ("Mareca americana"), also known as the baldpate, is a species of dabbling duck found in North America. Formerly assigned to "Anas", this species is classified with the other wigeons in the dabbling duck genus "Mareca". It is the New World counterpart of the Eurasian wigeon. "Mareca" is from the Brazilian-Portuguese word "Marréco" for a small duck and "americana" refers to America.