In Texas we a large feral pig problem. We take a six inch flexible drain pipe, it has holes in it, and fill it with corn that has been soaked in diesel fuel. A motion activated light is pointed on the corn filled pipe. Hogs come from miles away when they smell that diesel fuel. Take you about 5 cold six packs and a comfy chair and wait across the field for the light to be activated. Mmmmm, we's got some good hunten, Sooooooweeeee, Bob!