Cervus elaphus, Cervus canadensis nelsoni, Elk, Alberta, North America, Rocky Mountain Elk, animal, animals, elks, elk herd, wapiti, fauna, group, harem, herd, horizontal, mammal, mammals, wildlife, rut, mating season, breeding, male, female, bull, cow, hoofed mammals, hoofed mammal, Rocky Mountains, leesonphoto, bugle, bugling, mating call, fresh snow, fall