This is just before he started to chase the female through these trees. As he ran down into them, we all heard a very loud crack! While fortunately it must have been a good sized branch cracking when his antlers hit it, he acted a bit bewildered for a bit. So it obviously made a big impact on him as well. While he was recouping, the rest of the females crossed over to this side as well. The are you can see through the trees is part of the Horseshoe Park area.