A moment from yesterday! The Mule Deer rut is on its way! I spotted this old muley buck keeping company with four does. Check out his swollen neck — when bucks go into rut, their necks thicken from a mix of testosterone, increased blood flow, and muscle mass. I’ve read that their necks can swell up to 50% during the rut. Once the rut wraps up, the swelling gradually fades. #muledeer #deer #muleyfreak #wildlife #wildlifephotography #reelsvideoシ #fbreels2024 #fyp #fypreels #colorado #rut | Colorad