One thing I have learned about bears is that when you look at them and they dont have a belly draging on the ground and a head so big the ears look like they arnt there you will give a few extra pounds.the second onelooks like a 90-110 pound bear by the size of the ears, head, broadness os shoulders(well lack there of) and distance between the belly and ground.

With a 100 pound minnium I would be a little lerry about shooting it.