Lagopus muta
Length: 12-15 Weight: 1-1.5 lbs
Identification:
In summer, male is mottled brown and white, female is barred brown. In winter, both sexes completely white. Tail black, and wings white.
Distribution:
Resident of the tundra in Alaska and northern Canada.
Cool Facts:
Rock Ptarmigans and their relatives are masters of camouflage on the tundra: in summer they are mottled white, brown, and black to match rocks and lichens; in winter, their solid white plumage makes them invisible on the snow.
The Rock Ptarmigan is the official bird of the territory of Nunavut in Canada. It is also the official bird of three Prefectures in Japan, and is a protected species throughout the country.
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References:
Bird on the Move 