Willow ptarmigan complicated changes in plumage several times a year and the differing colour and pattern of the summer plumage: The willow ptarmigan often hybridises with the black grouse ("Tetrao tetrix") and the hazel grouse ("Tetrastes bonasia") and occasionally with the western capercaillie ("Tetrao urogallus"), the spruce grouse ("Falcipennis canadensis") and the rock ptarmigan ("Lagopus muta"). During the Pleistocene, the willow ptarmigan widely occurred in continental Europe. Authors who recognize paleosubspecies have named the Pleistocene willow ptarmigan "L. l. noaillensis" (though the older name "medius" might be the correct one). These marginally different birds are said to have gradually changed from the
2010 Arctic Winter Games held in 2012 in Whitehorse, Yukon. 2010 Arctic Winter Games The 2010 Arctic Winter Games were held in Grande Prairie, Alberta, Canada from March 6 to 13th. The Arctic Winter Games is an international biannual celebration of circumpolar sports and culture, held in Canada or Alaska. Over 2,000 athletes from nine teams (Alaska, Alberta North, Yukon, Yamal-Nenets, Northwest Territories, Greenland, Nunavik Québec, Nunavut and Saami) participated in the games. Sports included alpine skiing, arctic sports, badminton, basketball, biathlon, curling, dene games, dog mushing, figure skating, freestyle skiing, gymnastics, hockey, indoor soccer, snowboarding, snowshoeing, speed skating, table tennis, volleyball and wrestling.