willow grouse
noun
1- a common Eurasian and North American grouse with reddish-brown and white plumage, turning mainly white in winter柳雷鸟。
1.1
- Lagopus lagopus, family Tetraonidae (or Phasianidae).拉丁名Lagopus lagopus, 松鸡科（或雉科）。参见RED GROUSE.