White-tailed Ptarmigan (Lagopus leucura) [XC433227]
by Julia Wittmann from Washington: Mt Rainier NP: Sunrise: between Frozen Lake and 1st Burrough, United States (call, calls female and chicks)
White-tailed Ptarmigan (Lagopus leucura) [XC388449]
by from Piegan Pass GNP, Glacier County, Montana, United States (call)
Subspecies
Validity of subspecies questionable. All may be invalid.
The following 5 subspecies are recognised:
peninsularis Chapman, 1902 - Mountains in Alaska, Yukon and Mackenzie, south to Kenai Peninsula and southern Yukon.
leucura (Richardson, 1831) - Northern Yukon, western Br. Columbia and western Alberta to northern border of US.