紅胸秋沙鴨
Red-breasted Merganser
Mergus serrator
無危。冬候鳥。嘴長而帶鋸齒，枕部的羽毛長而鬆散。雄性頭部深綠色，上胸栗色，雌性頭帶褐色。冬天見於沿海水域。
Least Concern. Winter Visitor. Long and saw-shaped bill with ragged crest. Male: dark greenish head and chestnut coloured upper breast; female: brownish head. Found in coastal waters in winter.