common ptarmigan
Quick Summary
The common ptarmigan (L. mutus) is a partridgelike grouse found in cold regions, including the British Isles, Europe, and North America, where it is also known as the rock ptarmigan. These birds are characterized by their seasonal plumage changes, shifting from white in winter to blend with snow, to gray or brown with barring in warmer months to match tundra vegetation.12
Ptarmigan have feathered toes, distinguishing them from other grouse species. They survive Arctic winters by feeding on shrubs, lichens, and leaves, and they burrow into snow for shelter while sleeping. Males are known for their cackling calls and engage in social displays in early spring.1
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