I usually let them out about 8 weeks. I let the older layers free range all day long. I have a dog that protects against bigger prey but does not protect against Hawks. I wait till 8 weeks till they are old enough to get away from the the older hens in case they are picked on. I usually feed them in their own coop before letting them out. I usually start letting them out late in the day for 2 hours and gradually increase the time.