JJ, where in Idaho have you seen wild free ranging hogs? I'm just curious, because I've lived in North Central Idaho all my life and have never heard of any wild free roaming hogs. This part of the state with relatively mild winters, agriculture, and brushy canyons with water might be the best place for them to have a chance.
Back to the origianl question. Unless on private land where access and hunting is limited I really can't imagine hogs getting established here where most people carry a rifle when out and about. A few years ago, a couple dozen escaped from a guy who was raising some of the feral looking hogs(not the domestic variety). The F&G informed the public to shoot on sight if encountering the hogs. It didn't take long and the hog escape scare was over.
