Snow Bunting
Plectrophenax nivalis

f13 @ 1/1600s, ISO:800, Nikon D300S w 300mm

"Snow Bunting," Wikipedia, the free encyclopedia. The breeding female is grey-black where the male is solid black. In winter plumage, both sexes are mottled pale ginger, blackish and white above, and pale ginger and white below, with the males having more white than the females. The bill is yellow with a black tip, all black in summer males. Unlike most passerines, it has feathered tarsi, an adaptation to its harsh environment. No other passerine can winter as far north as this species apart from the Common Raven.
Cambridge Bay, Nunavut, Canada