Rocky Mountain elk, Rocky Mountain elk bull, Rocky Mt. elk, elk, elks, wapiti, Cervus elaphus, animal, animals, warm-blooded, wild, wildlife, diurnal, vertebrates, vertebrate, herbivore, ungulate, ungulates, mammal, mammals, hoofed mammal, hoofed mammals, fauna, bull, male, north america, canada, Alberta, Jasper National Park, single, individual, one, vertical, portrait, portraits, action, full body, standing, behaviors, behavior, call, calling, autumn, fall, courtship, breeding, forest, deciduous forest, mountains, communicating, communication, competition, aspen trees, bugling, bugle, photos, photo, photograph, photographs, image, images, picture, pictures, stock, of, agency, leesonphoto