With him being a neighbor, I cant blame you with not posting. He could potentially claim defamation of character or some such legal bs. I would contact your game authorities. In NY, his actions would be considered harrasment of wildlife and interfereing with legal hunting activities, for which he would be ticketed, and obviously very negative publicity. A publicly seen hunting personality participating in anti-hunting activities? Hmm, seems it would be very bad for him...
Catch a video of him, give him a copy, and mention..."you can see this on Youtube tomorrow if you dont cut the s...