Male Bull Elk herd Rocky Mountains Yellowstone National Park Montana Wyoming Idaho Denver Colorado wildlife animal antlers sunset winter eating tall grass forest meadow backcountry buck hunter gimbal

elk herd elk buck colorado drone antlers deer bull montana wyoming yellowstone evergreen denver wildlife animals yearling calf winter snow grass mountains peaks rocky mountains hunt hunter buck hunter snowy sunset afternoon morning walking eating grazing cinematic vail wilderness open space conifer idaho usa mount blue sky mount evans cows small herds spring autumn wintery raising calves spring time