ptarmigan
/ˈtɑːmɪgən/noun
1- a northern grouse of mountainous and Arctic regions, with feathered legs and feet and plumage that typically changes to white in winter雷鸟。
1.1
- Genus Lagopus,family Tetraonidae: two species, in particular the (rock) ptarmigan (L. mutus) of Eurasia and North America.雷鸟属, 松鸡科：2种, 尤指亚欧大陆和北美的岩雷鸟（拉丁名L. mutus）。
词源
late 16th cent.: from Scottish Gaelic tàrmachan. The spelling with p- was introduced later，suggested by Greek words starting with pt-.