Hello! I'm a first time chicken raiser. I have 8 chicks that are about 4-5 weeks old. They are currently in a tub, but they are way too big to stay. We do have a chicken coop, but it's still getting in the low 20s to teens at night. We keep bouncing anywhere from the 20s to 50s during the day. Gotta love Michigan! They are currently in our garage, but we do have a barn. Any suggestions? We don't want to spend a lot of money on anything new. I do want my babies to have enough room and be able to stretch their wings a little! Thanks!