I’ll second the lack of interest in other carcass use. I’ve seen birds, porcupines(skinned) beaver, bear carcasses all used and no interest in them at all. I used the same beaver carcass all June last year. Nothing ever ate it, which is fine cause the smell was around for months. Other times I’ve seen them (grizzly) tear a barrel apart just for the beaver. One thing is for for sure, and that’s that nothing is for sure with bears.