Distribution
The White-tailed Ptarmigan is an alpine species, a permanent resident of the high mountains above timber line. It occupies open country and flies a great deal more than forest grouse, but still prefers running to flying. It ranges from Alaska and western Canada south to northern New Mexico.
The White-tailed Ptarmigan has been introduced into the Sierra Nevada Mountains of California, Wallowa Mountains in Oregon, and Uinta Mountains of Utah. Males return from their timberline wintering areas to establish territories on spruce-willow timberline breeding grounds in April. Females arrive in early May and pairs are formed.
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