綠頭鴨
[詞典] mallard; Anas platyrhynchos （又稱“大麻鴨”）
[例句]
This?is?the?earliest?known?existence,?and?the?genealogyhas?been?traced?to?the?present-day?mallard.
這是已知最早的實證，種系論已經追蹤到今天的綠頭鴨。