The sound of September It's that time of the year when elk begin their migrations and begin looking for mates during the rut (breeding season). During the rut, elk bulls may fight, bugle and protect their harems (cows & calves). This time of the year also means elk bulls can become agitated if any other animal, object or person appears to pose a challenge. Always stay far away from all wildlife! | Colorado Parks and Wildlife

Roosevelt bull elk bugling during the rut, or breeding season. This incredible sound is made to show off to other bulls and the females. | Northwest Trek Wildlife Park

Wildlife Officer Chase Rylands talks about the elk rut, or breeding season, and the behavior of the bulls during this fascinating period during the fall. The video was produced for the virtual version of Estes Park's Elk Fest, celebrating all things elk. | Colorado Parks and Wildlife