I found a bunch of Dusky grouse last spring while shed hunting in an area that was about 2000' lower than where I usually see them in the summer and fall. I have been back this fall to find no sign of them. I figure when the snow gets deep they move, however, based on what I have read that may not be the case. Do dusky grouse have winter areas and if they do, when do they move to them? Do you think they are in this area year round and I just need to keep searching?