I'd say 3.5. Those pictures through the scope show pretty clearly that he isn't 4.5. He looks like he may even be 2.5 in one photo, but everything else says 3. In a wet year like this, I am always going to go with the younger age if I'm stuck between 2 ages. Also, I'd rather give a buck an extra year than take him when he's too young. That deer has good potential, so I'd let him walk at least another year.