I have been spending a lot of time with these guys over on Spring Creek.  There are about 12 – 18 of them at a time depending.  At first the musk rat trapper was blowing them out when he came through, which unfortunately was just about the time that the sun made it over Mat Peak.  Well in Alaska the light moves fast and sunrise over the peak has moved up enough that I get in and out before the trapper shows up.