a threatened greater sage grouse displaying air sacs on a breeding lek

air alpine animal beak beautiful beauty bird birding blend breeding camo camouflage camouflaged chick christmas cold colorado country courtship displaying ecosystem elevation flight flock flushed flying game gets greater ground grouse hiding high holiday juvenile lagopus lek leucura mating mountain mountains nature plain plumage pretty ptarmigan ptarmigans pure resident ritual rocky sacs sage sight snow snowy tailed threatened tundra tundran watching well white whitetailed wild wildlife willow winter young