… The family Tetraonidae includes 16 species and is closely related to the Phasianidae, of which some scholars classify it as a subfamily. They are distributed in the central and northern parts of the Northern Hemisphere, with some species living in forests (such as the Hazel Grouse and the Capercaillie), some confined to high mountains (the Rock Ptarmigan), and some living in plateaus (the Sakhalin Grouse). They range in size from small, about the size of a bantam chicken, to large, about the size of a female turkey, with the males being larger than the females. … *Some of the terminology that refers to "Salah ptarmigan" is listed below. Source | Heibonsha World Encyclopedia 2nd Edition | Information |
… ライチョウ科Tetraonidaeには16種が含まれ,キジ科に近縁の科とされ,学者によっては,キジ科の1亜科として分類することがある。北半球の中・北部に分布し,森林(エゾライチョウ,オオライチョウなど)に生息する種,高山に極限されて(ライチョウ)生息する種,あるいは高原地帯(カラフトライチョウ)に生息する種などがある。ニワトリのチャボ大の小型のものからシチメンチョウの雌くらいの大型のものがあり,雄は雌よりも大きい。… ※「カラフトライチョウ」について言及している用語解説の一部を掲載しています。 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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