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冠頂秋沙鴨 (Hooded Merganser)

(2009-01-01 19:02:29) 下一個

冠頂秋沙鴨 (Hooded Merganser)是體型最小但羽冠最大的北美本土鴨。雄性的羽冠垂直,呈帶黑邊的白色扇形。可以頻繁地聳起放下以示炫耀。從側後看過去,象是戴著一頂白色黑邊的頭盔,很是威風。頭,肩和頸圍黑色,胸腹白色,兩側有兩道黑條紋,背羽為黑白相間條紋狀。側腹為磚紅色,非常漂亮。雌鴨羽毛深棕色,有較短的羽冠,呈棕紅色,背部有黑白相間的條紋。冠頂秋沙鴨是一種短距離的遷徙鳥類,每年冬季和初春在紐約地區可以看到。它以水中的小魚小蝦和昆蟲為食,一般對遊人的投食不感興趣,多停留在距岸邊較遠的水中。

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