Ours free range all over our 6 acres, lots of bushes in different places but they seem to prefer just a few and they even fly over the fence to the neighbors thickets. However, they all come in at night on their own and some of them roost outside in an open front shed and one or two hide away. if you have lots of property I think it's possible without a coop as they can fly up and roost away from most predators at night. However, most folks I know have some kind of shelter and preferably, predator proofed if possible. Good luck!