I let my chickens out of their pen every day for about an hour, but I am right by them so I can watch them. I would like to let them free range all day, but I am afraid something will happen to them. I am surrounded by trees and my yard isn't fenced in. The only critters I see are the usual ones you see at night, but by that time they would be in bed. I must not have any fox nearby because I have a ton of wild rabbits in the yard. I have seen an occasional cat stroll through but that doesn't happen much anymore. My neighbor down the road a little ways lets hers out all day, but her yard is fenced in. I am more worried about hawks. My chickens are 4 months old now, so they are pretty good size. I do have the Bantams and the smallest on is an Old English Game, so she would probably be a good target for anything. Maybe if I just let the bigger ones out and see how it goes? I need an opinion so I know if I am just being worried for nothing. Plus they would love to get out all day.