1st question: So I have 17 chicks between 8 and 9 weeks old. Our brooder box is getting to small for them all. Most of them have all their feathers except about 7 of them. I'm thinking its due not having enough room? I really don't want to put half of them out and not the other half unless I have to. The coldest night we have had is 19 degrees. We are new to chickens and can use any help we can get! All my copper merans wings cover for the most part their back, but my little leg bars (3) don't have their back feathers yet and their wings do not cover their back. With the merans not having feathers, but back covered can I put them out with the rest of my chickens or wait? 2nd question: I have 2 chicks (4 weeks old) if I put the merans out and leave the leg bars in (until they get their feathers) can I put my 2 4 weeks old chicks in with the 3 leg bars?