Shackleton,

You won't have to go far if you want to hunt feral pigs. I know of problem populations in Indiana and Wisconsin. In fact, I have been in touch with a scientist at the Wisconsin DNR and they have been particularly nice people to talk to. They have a problem population near Prairie du Chien and I gave them some suggestions on how we hunt pigs in India - their escaped cousins in North AMerica, it turns out, are not very different.

Let me know if you want the contact details of the gentleman in the Wisconsin DNR and I'll happily put you in touch with him. He is a really nice person to talk to.

Good hunting!