RF2BTC1F7Willow or Red Ptarmigan Male in Denali National Park
RM2C8YBYXWillow Ptarmigan (Lagopus lagopus) in Denali National Park, Alaska
RMC092YEMale Willow Ptarmigan in breeding plumage stands on snow near Savage River, Denali National Park and Preserve, Interior Alaska
RMBE3XDYWillow ptarmigan (willow grouse), Lagopus lagopus, male in summer breeding plumage, in tundra, Denali National Park, Alaska
RMBTDB48Willow Ptarmigan shows the early signs of winter plumage near the Sanctuary River in Denali National Park and Preserve, Alaska
RFEHDE5FWillow Ptarmigan (Lagopus lagopus) in summer plumage, Denali National Park, Alaska. The state bird of Alaska.
RMC092YTMale Willow Ptarmigan in white winter plumage walks on the frozen Savage River in Denali National Park and Preserve, Alaska
RF2C9X8T1Willow Ptarmigan (Lagopus lagopus) in Denali National Park and Wilderness Preserve in Alaska. Plumage is mottled in summer and white in winter.
RMDA6GR3Willow Ptarmigan or Willow Grouse (Lagopus lagopus) standing in the Arctic tundra
RMC09304Adult male Willow Ptarmigan in white winter plumage vocalizes with open beak near Savage River in Denali National Park, Alaska
RFB19CCBAdult male willow ptarmigan (Lagopus lagopus) in breeding plumage surveying its spring territory, Denali National Park, Alaska,
RFWP6TP7Female Willow Ptarmigan in Denali, Alaska
RFKCKDYDWillow Ptarmigan portrait, Lagopus lagopus, Denali National Park, Alaska, USA