I know some people have runs just for inclement weather, and chicks free range as a habit. I shave a run because mine don't free range, and tractors to let them go on grass and bug hunt. I read somewhere that it's up to the owners whether to free range, and how they handle loss. Some people are ok with the natural order of things. If I saw a hawk, which we have plenty of here, flying away with one of my live chickens, struggling and screaming, I would have to go to the cuckoo ward myself. Not to mention the effect on the Roos and others hens. So I dont handle loss of my animals very well. People I do much better.