I currently have my baby chicks in my home. They are going very quickly and I will probably run out of room. I live in Michigan so the weather is quite cool yet. How old do my chicks need to be before I can place them in the garage (I will have a lamp on them) but I am unsure how much cold they can take and how big they need to be. They are going so fast and they are starting to have more feathers than fluff.