My hen lost her BFF a few months ago and has been living by herself every since. She is very tame and thinks she is a dog most of the time. Anyway my husband brought home five 3wk old chicks last night from his bosses. We kept the chicks in a medium size cage last night with a standard house lamp on them inside the semi climate controlled garage. This morning I moved the cage to the hen yard/coop area. My hen was curious and went right into the cage and ate/drank water with the chicks. I did see her a few time give small pecks to the chicks but nothing out of hand or what not. After leaving the chicks free to go in and out of the cage into the hen yard for a over an hour I decided to move the chicks into the coop to see what they would do and see what my hen would do. So my question is this- Is it safe to leave them there during the day and possibly tonight? How do I know if my hen will turn on them? I live in Milton Fl which is in North Florida and the temps are dropping at night. Do the chicks still need some sort of heat lamp at night?