What I think would make it work well too is that if you split the bounty, where the hunter gets $10 and the landowner gets $10 ($20 if you're hunting your own land). That would encourage ranchers and farmers to open their land up to hog hunters. They're businessmen, after all, and if they would gain in the long term by having the destructive critters thinned out, and gain the short term by getting an immediate paycheck, even the ones who are hesitant to allow hunters on their land might reconsider. And $10/hog for the hunters makes taking a few days off to hunt a much more desirable deal because on a good day a single hunter or small group might shoot several piggies, which would easily cover the cost of gas, food and ammo for the day for residents, and at least offset the costs of the hunt for non-residents. Heck, if I were a resident, I'd shoot a few, keep a couple myself and skin and quarter the rest and drop them off at a food bank or church soup kitchen for charity. I'm sure the piggies are good eating, and a 150 lb hog would feed a poor family for a month or better. Everybody wins. But, I fear it'd never happen because it makes too much sense.

Oh, and I'm not a rancher or farmer, but if I were I think I'd be more hesitant to have a couple yahoo's in a chopper buzzing 50ft over my livestock that I would to have 5 guys on the ground. My experience is that cattle don't react much to the sound of gunfire if it's not real close, but I'm guessing that a chopper at low altitude would spook the heck out of them. I know that in some places they use helicopters to herd cattle, so it's bound to stress them out.

Mike