I have never free ranged or started with chicks. I have a dozen old hens left that will come home if I let them out... But I got some store bought chicks. They are 4 weeks tomorrow. When will I be able to start thinking about free ranging them? I recently fenced 10 acres and their coop will have wheels to move around. Also, I want to free range all my future hens. I know the bio-security benefits of have a rooster but never needed one. Would it be a good idea to get one to range with the hens? I am in the Arizona desert. Predators include snakes and borrowing rodents that the fence won't keep out.