One way to determine what size bears are in your area is to hang a bait bag up in a tree. Choose a tree with fairly smooth bark. Leave the area for a day or two and come back to check the tree for claw marks. A 4 inch wide claw pattern equates to approximately a 200 pound bear. A 5 inch wide claw pattern equates to approximately a 300 pound bear and a claw pattern wider than 5 inches equates to one big bear.