I have 13, 13 week old chickens, and they've eaten all the grass that was in their run. So they really don't have anything in there to peck at and eat besides the occasional bug that flies in or any fruit I give them. I've let them out all together maybe two times, but never let them go anywhere really. We have around 4 acres of land, with lots of lawn, but also woods surrounding the land. The coop is at the very edge of the property, really close to our neighbors house. There's tall grass that is behind the cool and I'm afraid if they go in there they'll make it to the woods and won't come back. We have a lot of wild life around like hawks, turkey vultures, weasels, and coyotes, plus my neighbors cat comes around every few days to hunt for mice. I know the chickens would love to be out of that run, but I'm afraid they'll run off and won't come home, or something will get them. Help!