Purchased 4 hens about a month ago. They were all 11 or 12 weeks old. Let them stay in the coop for 3 days and after that they get to wonder the lower back yard which is about 52 feet by 30 feet. Doing well and they get back into the coop at night to rest. Looking forward to some eggs in the near future. I do this as an out since my wife has cancer and it gives me an excuse to visit the backyard and check on our plants and chickens as well. The support group I go to for my wife says it is a good thing for the care giver to get out and do something, and you know it does help, thanks to the support group.