I think your concerns about other bears causing a problem while you're skinning are an issue in the fall, but not so much in the spring. Having skinned a decent number of bears at both times of the year, I've had to fend off various ones in the fall, but never in the spring.
Interesting. I have never hunted there in the Spring. So, I have no experience, but I would have thought the opposite.
Why do you think they're more-aggressive in the Fall? I thought that they would have been more-aggressive in the Spring, just because, I think, they're generally hungrier then.
