Dealing with this right now on my property. There is noting the game warden can do because they are legally hunting on their property. What you can/should do is put up no trespassing signs, call the DNR and let them know what is going on so they are aware. Lots of times they will touch base with the hunting club president to discuss the complaint. You also need to write a letter to the land owner, informing them of the issues (I'm assuming the land is owned by someone other than the guys doing the hunting). Include pics in your correspondence. Then shooting onto your property is a safety concern for the folks on your property and most land owners will not put up with it.

