A passerine bird of the lark family. Total length 17 cm (illustration). The underside is sandy or brown, the forehead, cheeks, and chest are black, and the brow and throat are yellow. In the breeding season, males have a pair of black horn-like crests on their heads. In Eurasia, this bird breeds in the tundra and highlands of the south, and in winter it migrates to open sparse grasslands in the temperate lowlands, coasts, and snow-free steppes, where it hibernates in small flocks. In North America, where no other species of lark are found, it has expanded its distribution to almost all open areas, from tundra to grasslands and deserts, and has even reached the highlands of Colombia in South America. Source: Heibonsha World Encyclopedia, 2nd Edition Information |
スズメ目ヒバリ科の鳥。全長17cm(イラスト)。背面は砂色ないし褐色で,額,ほお,胸が黒く,眉斑とのどは黄色い。繁殖期の雄は頭部に1対の黒い角状の冠羽がある。この鳥はユーラシアではツンドラ地帯と南部の高地で繁殖し,冬季は温帯低地の開けた疎生草地や海岸,積雪のないステップに渡り,小群で越冬する。ヒバリ科の他の種が分布していない北アメリカでは,ツンドラから草地,砂漠まで開けた場所のほとんどすべてに分布を拡大し,さらに南アメリカのコロンビアの高地にまで達している。
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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