It is a member of the Anatidae family and is larger than the common merganser, reaching a total length of 65cm. Males have a green-black head and neck, white and black wings, a black back, a grey waist and tail, and a white chest and abdomen. Females have a brown head and neck and a short crest (→ crest). The back is grey-brown, and the chest and abdomen are white. It is widely distributed from Europe to Central Asia, East Asia, and North America. In Japan, it migrates to lakes and rivers as a winter bird (→ migratory bird), and a small number breed in Hokkaido. The edge of the beak at the joint is serrated, which is characteristic of this species, making it easier to catch fish. (→ Anatidae) Source: Encyclopaedia Britannica Concise Encyclopedia About Encyclopaedia Britannica Concise Encyclopedia Information |
カモ目カモ科。ウミアイサよりも大きく,全長 65cm。雄は頭頸部が緑黒色,翼は白色と黒色,背は黒く腰と尾は灰色,胸腹部は白色。雌は頭頸部が褐色で短い冠羽(→羽冠)がある。背面は灰褐色,胸腹部は白色。ヨーロッパから中央アジア,東アジアにかけての地域と,北アメリカに広く分布する。日本には冬鳥(→渡り鳥)として湖沼や河川に渡来するほか,北海道で少数が繁殖している。嘴は合わせ目の縁がこの仲間の特徴である鋸歯状になっていて,魚をとりやすくなっている。(→ガンカモ類)
出典 ブリタニカ国際大百科事典 小項目事典ブリタニカ国際大百科事典 小項目事典について 情報 |
<<: 《Cute Marka-chan》 - Cute Marka-chan
〘Noun〙 Under the Ritsuryo system, when a local off...
The center of the Hokuseicho district of Inabe Ci...
...They also make a sharp, threatening sound. Sim...
Languages that are related to one another, that ...
One of the public enterprises unique to Japan. It...
…Home magazines with clothing patterns and practi...
...When young, the black markings are vivid, but ...
...the name of a silk fabric and a type of Noh co...
Politician. Pen name: Soni-an. Father of Yumeno Ky...
In a broad sense, immunotherapy is a general term ...
...The malt and sugary additives are crushed and ...
This refers to the four tools used by literati in...
A city in central Niigata Prefecture. It was incor...
…The northern part of the city is dominated by mo...
When we expand the idea of functions to include...