Rock ptarmigan - Rock ptarmigan

Japanese: ライチョウ(雷鳥) - ライチョウ

A bird of the ptarmigan family. Wingspan: 18cm. Winter plumage is entirely white. Summer plumage is spotted with yellowish brown, dark brown, and white. Distributed widely in the world's polar and subpolar zones, as well as the European Alps, Japan being the southernmost limit of its breeding grounds. It lives as a resident bird in the alpine zones of the Northern and Southern Alps. During the day, it mainly hides in thickets of pumila and emerges onto grasslands in the morning, evening, or when it is foggy. It feeds on the fruits and leaves of alpine plants, as well as insects. Special natural monument. Endangered species IB (Ministry of the Environment's 4th Red List). In Japan, the closely related hazel grouse lives only in the forests of Hokkaido.
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Source : Heibonsha Encyclopedia About MyPedia Information

Japanese:

ライチョウ科の鳥。翼長18cm。冬羽は全体白色。夏羽は黄褐色，暗褐色，白などの斑。世界の寒帯，亜寒帯，ヨーロッパアルプスなどに広く分布し，日本が繁殖地の南限。北アルプス，南アルプスなどの高山帯に留鳥としてすむ。昼間は主としてハイマツのやぶの中に潜み，朝，夕あるいは霧の深い時などに草原に出る。高山植物の実や葉，昆虫などを食べる。特別天然記念物。絶滅危惧IB類（環境省第４次レッドリスト）。近縁のエゾライチョウは日本では北海道の林にのみすむ。
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