Well the problem is I live in Idaho where it WAS warm but has now turned into a late winter. During the day we can sometimes get up to the 40's. My baby Brahma bantams are going to be 4 week sold this week and are outgrowing their brooder fast. I have a chicken tractor with a light that I pulled into our shed (not entirely closed in) that they would have a lot more room in. Is it too early to move them out if they are covered and heated? I have 23 plus two Silver Laced Wyandotte chicks the same age. I would put cedar chips down etc. Thanks! p.s. what if I put them out during the day to start?