Update: I put up a makeshift wall because I can put up a fence and the walls are wood boards (previously used as a horse stall). The light I had up was there all winter for my older, it is secured to the roof so it can fall down. I was out checking in everyone at 6am and all was good. My hen even decided to lay an egg last night even with all the commotion. I am guessing that the babies are about 7 weeks old but I don't know for sure and we are still in the 40's at night so I didn't want to move them yet but they have out grown the space I had for them on the porch. I guess I should have had a little more self control but when I saw so many on sale for 50 cents I could help myself!