Elk duel in Banff National Park

This picture was taken in Banff National Park during the rut season. I first spotted the elk to the left of the picture, but I could see the other elk crossing a creek a little farther. It was putting his head up and tongue out, so I waited since I knew that a duel was going to happen. In a matter of minutes the elk were facing each other and lowering their heads to start the fight.