all you need to get rid of hogs is a mountain lion calling your property home. i hunt out near Sonora. for years, we couldn't throw a stone without hitting a pig. about 4 years ago, a mountain lion set up shop on our property. i haven't seen any sign of pigs in the last 2 years. the deer populations have not suffered, but the pigs have been wiped out. i for one say that is a great thing.