If ya can't talk to em, print out no hunting notices on yer puter and scotch tape it to their windshields and take their license numbers.
As for all the "hunters are dickheads" posts... ah, no, dickheads are dickheads. Hunters are not. If you don't understand hunting, it cannot be explained to you. Leave the hunters alone and go enjoy your BBQ... or roast turkey... or lobster boil... or trout fry... or leather shoes.