Great Cinereous Owl

A big nightbird, haunting woods of the far north and certain high mountains of the west. Its great size is partly illusion: it has very thick fluffy plumage, and its body size is smaller than it would appear, so it preys mostly on tiny rodents. When there is a population crash of voles and other rodents in the boreal forest, numbers of Great Gray Owls may drift into the northeast, causing excitement for birders.