I let mine free-range. I figure if anything *wild*, like coyotes, foxes, skunks, coons, opossums, etc kill any, that's fine because as I see it, for every new house/building that goes up in the country, that's one more acre of food or a food source taken from the wildlife that won't ever be recovered, and with the huge population explosion and the thousands/day of illegals coming here and crowding ever more outward from cities, the wildlife can have what they want of my chickens. I won't go out and tie them up for the critters, but I won't kill any more of them either.