I have 26 of them and they are brooding down in a basement hallway--- they are getting very adventurous. I do not want them to have the run of the entire basement--- it is a finished basement. They are 5 weeks old and pretty well feathered out. Would it be safe to move them to the coop with a couple of flat panel radiant heaters. I am in Northern Illinois so nights can still get down below freezing--- at least for a few more weeks. I have a perfectly good coop and chicken yard waiting for them and do not want to have to chase them around the basement anymore--- those little buggers are fast!