Put up a trail camera and see when they are coming in. They ususally come in at night, and if there isnt a timed feeder they will come in around the middle of the night. Just see when they come in and go back out then. You cant spotlight them here in oklahoma without a depredation tag but they are really easy to get and dont cost anything. Just ask a game warden about them, they hate hogs so are pretty quick to give you permission to get rid of them by any means necessary