Adult female White-tailed Ptarmigan (White-tailed Ptarmigan). This species undergoes almost continuous molt from spring until fall resulting in a variety of plumages that match the species changing alpine environment. Central Cascades, Washington. September.
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Adult female White-tailed Ptarmigan (White-tailed Ptarmigan). This species undergoes almost continuous molt from spring until fall resulting in a variety of plumages that match the species changing alpine environment. Central Cascades, Washington. September.