I will first qualify my response in that I have yet to shoot a bear. It's on my bucket list.
What I will say is that from what I've heard and read, a bear's relative size can be determined, at least, in one way by the size of it's ears in relation to it's head/body. The first picture looks to me like he has pretty good sized ears, which should dictate a smaller or younger bear. Like I said, this is from "book knowledge", and not practical experience. That being said, my novice guestimation would be.............
187 lbs. 9 ounces.
