Good so now in order to get up with the dog owner all you have to do is catch the dog. He isn’t going to leave that collar in the woods. Don’t remove any collars but catch the dog and the owner will come to you so you can talk about the situation. If it continues to happen after that catch the dog and turn them over to the game warden. If that doesn’t work you either have to find a different lease that isn’t around dog hunting clubs or put a whooping on the ole boy. I suggest that if it gets to that point just find a new place because they may not lock them up for trespassing but they will lock you up for assault or murder and in today’s world either is just as likely to happen over something as stupid as hunting.