Ok I know I'm jumping the gun but I like to be prepared. I know I should lock them in the coop at first to establish a "home" but do they still need the lamp in the coop? My coop isn't set up for electric yet. I've heard 4-5 weeks is a good age to transfer them from brooder to coop, is that so even if they won't have a lamp. I suppose I could rig something up if I had to?