RE: I think I found a poachers' set!
If it's your property and no one is allowed I'd call the guy and tell him to cease and desist. I'd do it politely and give him a time limit, like a day and no hunting when he comes to get it. Tell him you're sorry but you don't allow hunting. If he doesn't come and get it within the alloted time, tear it down and leave a note telling him where he can pick it up. If you know who's yard he's parking in I'd contact them and tell them your land is off limits too. Be polite the first time to avoid paybacks. Then get nasty if you have to.