A bull elk bugles to achieve dominance over other males and attract females during the mating season, or rut. The bugle is a high-pitched whistling sound that carries for many miles. A mature bull elk may hold a herd of up to 30 cow elk in his harem and oppose all challenges by other males.
Rocky Mountain National Park, Colorado
Susan LitwinetzelkbullbuglingharemRocky Mountain National ParkColoradorut