A bird of the family Anatidae in the order Anseriformes. It is about 70 centimeters long, has a longer neck than other species, and a body shape suited to long-distance flight. It breeds widely in the Holarctic region, but also reaches Africa, India, South Asia, and the Philippines. Some migrate from North America to Japan, and are highly gregarious. Separate subspecies have evolved on Kerguelen Island and Crozet Island in the Southern Hemisphere. In addition, the yellow-billed pintail is found from the Andes to South Georgia in the Antarctic, the white-tailed pintail is found from the Antilles in Central America to South America and the Galapagos Islands, and the red-billed pintail is found in Africa. [Nagahisa Kuroda] They breed in Eurasia and central and northern North America, and migrate to Japan as winter birds. They have a long tail, and the male (pictured) has a dark brown head, with the white color of the chest continuing to the back of the head. Total length is about 70 cm. Anatidae ©Shogakukan Photo by Hideyuki Asakura "> Pintail Source: Shogakukan Encyclopedia Nipponica About Encyclopedia Nipponica Information | Legend |
鳥綱カモ目カモ科の鳥。全長約70センチメートルで頸(くび)が他種より長く、体形も長飛行に適し、全北区に広く繁殖しているが、アフリカ、インド、南アジア、フィリピンにまで渡る。北アメリカから日本に渡来するものがあり、群集性が強い。南半球のケルゲレン島とクロゼット島にそれぞれ別の亜種が分化している。そのほか、キバシオナガガモはアンデス山地から南極圏のサウス・ジョージア島まで、ホオジロオナガガモは中央アメリカのアンティル諸島から南アメリカおよびガラパゴス諸島に、アカハシオナガガモはアフリカに分布している。 [黒田長久] ユーラシア、北米中部以北などで繁殖し、日本へは冬鳥として渡来する。尾は長く、雄(写真)の頭部は濃茶色で、胸部の白色が後頭部まで続く。全長約70cm。カモ科©Shogakukan 撮影/朝倉秀之"> オナガガモ 出典 小学館 日本大百科全書(ニッポニカ)日本大百科全書(ニッポニカ)について 情報 | 凡例 |
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