Of the many farms I have been to, cages for
chickens were non existent. They are soo cheap at the
local country auctions that the few that were caught by hawks were just chucked up to natural selection and ended up a healthy and smart flock. The coop was placed in a wide open area, off the ground with a ramp going up. Opened every morning, eggs collected and shut at sunset to keep the foxes and coyotes out. They are domesticated animals and open to training, especially if faced with a life or death choice. Their wings were not even clipped.