Ptarmigans, Grouse - Lagopèdes, Tétras
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Rock Ptarmigan - Lagopus mutus
Banff, Alberta
Banff, Alberta
Rock Ptarmigan - Lagopus mutus
Waterton, Alberta
Waterton, Alberta
Rock Ptarmigan - Lagopus mutus
Waterton, Alberta
Waterton, Alberta
Rock Ptarmigan - Lagopus mutus
Waterton, Alberta
Waterton, Alberta
Willow Ptarmingan
Loveland pass, Colorado 1980
Loveland pass, Colorado 1980
Ptarmingan
Denali, Alaska 1981
Denali, Alaska 1981
Ptarmingan
Denali, Alaska 1981
Denali, Alaska 1981
Ruffed Grouse - Bonasa umbellus
Mt Evans, Colorado 1980
Mt Evans, Colorado 1980