This White-tailed Ptarmigan (Lagopus leucura)
was photographed at Guanella Pass, Clear Creek county, Colorado in early April 1997:
These White-tailed Ptarmigan (Lagopus leucura) were photographed at Guanella Pass, Clear Creek county, Colorado on December 04, 2004; HOW MANY BIRDS CAN YOU SEE?:
These Rock Ptarmigan (Lagopus muta) were photographed at Prudhoe Bay, North Slope Borough, Alaska in September 2006:
These Willow Ptarmigan (Lagopus lagopus) were photographed along the Dalton Highway south of Prudhoe Bay, North Slope Borough, Alaska in September 2006:
