[James_K]

What would be the advantage of that? Killing the animal comes with the risk of being poisoned, and no reward. It's best to just ignore them.

[fwip]

In theory, you're killing a species that competes with your preferred prey species for habitat or food, which could mean more abundant food for you and your kin in the future.

I am not aware of any species besides humans that do this, though.