I live in city limits and am planning on letting my chickens free range full time in my backyard, they would be in the coop at night. Does anyone else do this, who lives in the suburbs? I won't be doing this until they are full grown as well. Also will not let my dog in the backyard unattended by me. I work three days a week and they would be alone in the yard for these days. Any thoughts? Would this be safe? We only have the night predators like racoons, opposums, and skunks.