It does look like a Yearling Buck with the slightly rasied knubs...my guess is it either has the Mange or could it have rub the hair off from sticking its head inside a feeder or possibly a fence with the square shaped openings and rub the hair off?
You don't have one of those Antler Traps set up where You take some fencing and shape it in a V-shape and put corn in the center in hopes of the Bucks snagging and loosing their Antlers in it to find?...just an after-thought
