A species of bird in the family Bustard, or a general term for birds in the family Bustard. The great bustard (illustration) is about 100 cm long (male). Females are slightly smaller than males, but even they are as large as large geese. The head and neck are gray, the back below the spine is yellowish brown with fine white and black stripes, and the belly is white. The primary flight feathers are black, but the secondary flight feathers are mostly white. Males have white whiskers around the mouth and a brown band on the chest. They breed in the steppes of the mid-latitudes of Eurasia, and migrate to slightly warmer regions in winter. Source: Heibonsha World Encyclopedia, 2nd Edition Information |
ツル目ノガン科の鳥の1種,またはノガン科の鳥の総称。ノガンOtis tarda(英名great bustard)(イラスト)は全長約100cm(雄)。雌は雄よりひとまわり小さいが,雌でも大型のガンほどの大きさがある。頭頸(とうけい)部は灰色,背以下の背面は黄褐色で細かい白と黒の横斑があり,腹は白い。初列風切は黒いが,次列風切は大部分が白色。雄は口もとに白いひげがあり,胸には褐色帯がある。 ユーラシア大陸の中緯度地方の大草原で繁殖し,冬季は多少温暖な地方に移動する。
出典 株式会社平凡社世界大百科事典 第2版について 情報 |
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