A passerine bird of the treecreeper family (illustration). It is about 14 cm long and perches on tree trunks in a manner similar to that of woodpeckers, and like woodpeckers, it also has a stiff tail shaft. However, its beak is thin and curved, and it has three toes in front and one in back, like most small birds. The upper side of its body is mottled with dark brown and white, and the underside is white. It is widely distributed mainly in the mid-latitudes of Asia, Europe, and North America, and in Japan it lives mainly in the subalpine zone of Hokkaido, Honshu, and Shikoku. It lives in coniferous forests, climbing up tree trunks in a spiral from bottom to top, picking up insects and spiders that are found on the surface of the bark or in cracks in its mouth. Source: Heibonsha World Encyclopedia, 2nd Edition Information |
スズメ目キバシリ科の鳥(イラスト)。全長約14cm,キツツキ類に似たかっこうをして幹にとまり,キツツキ同様尾の羽軸も堅い。だが,くちばしは細くて湾曲しており,あしゆびは,ふつうの小鳥と同じく,前に3本,後に1本ある。体上面は焦茶と白のまだら模様,下面は白い。アジア,ヨーロッパ,北アメリカのそれぞれおもに中緯度地方に広く分布しており,日本では北海道,本州,四国のおもに亜高山帯に生息している。針葉樹林にすみ,幹を下から上へとらせん状に登りながら,樹皮表面や割れ目にいる昆虫やクモをくわえとって食べる。
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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