The Ptarmigan (Lagopus muta or mutus) is a small (31-35 cm long) bird in the family. It is a sedentary species, breeding across and and (including ) on rocky mountainsides and . There are isolated populations in the mountains of , the , the , , the Urals, the , the , and .
In America it is called the Rock Ptarmigan, or colloquially Snow Chicken. This is the official bird for the territory of , Canada.
SOURCE..... ENCYCLOPEDIATHEFREEDICTIONARY.COM