American wigeon

Japanese: アメリカヒドリ - あめりかひどり(英語表記)American wigeon
American wigeon

A bird of the family Anatidae in the class Aves. It is a freshwater duck found widely in North America south of Alaska. It is medium-sized, with a total length of about 48 cm, and a short triangular beak. Its head is cream-colored with black spots, and the back of its eyes is shiny green. It prefers inland freshwater, and migrates to Japan as a stray bird. A similar species in the Palaearctic region, the Eurasian Wigeon A. penelope , has a different chestnut-colored head, but the females are similar. It migrates to Japan in large numbers, finds itself in shallow waters rather than freshwater, and prefers to eat seaweed. The brown wigeon A. sibilatrix is ​​native to South America, and has a white front face and a black, shiny purple-green back of the head. It lives in inland lakes and marshes, and is sexually monomorphic.

[Nagahisa Kuroda]

American Wigeon
It is distributed from Alaska to North America, and migrates to Japan as a stray bird. The male (pictured) has a cream-colored head with black spots, and the back of the eye shines green. Total length is about 48 cm. Anatidae ©Shogakukan ">

American Wigeon


Source: Shogakukan Encyclopedia Nipponica About Encyclopedia Nipponica Information | Legend

Japanese:

鳥綱カモ目カモ科の鳥。アラスカ以南の北アメリカに広く分布する淡水ガモ。全長約48センチメートルと中形で、嘴(くちばし)は短い三角形。頭はクリーム色に黒点があり、目の後方が緑色に光る。内水面の淡水を好み、日本には迷鳥として渡来する。旧北区の近似種ヒドリガモA. penelopeは頭部が赤栗(あかぐり)色で異なるが、雌は似ている。日本に多く渡来し、淡水より浅海にいて、海藻を好んで食べる。ワキアカヒドリA. sibilatrixは南アメリカ産で、顔前部は白く、後頭部は黒く紫緑色光沢がある。内水面の湖沼にすみ、雌雄同形である。

[黒田長久]

アメリカヒドリ
アラスカから北アメリカに分布し、日本には迷鳥として渡来する。雄(写真)の頭はクリーム色に黒点があり、目の後方が緑色に光る。全長約48cm。カモ科©Shogakukan">

アメリカヒドリ


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