Hi All, My 8 girls are 3.5 weeks old and I put them in the coop today with a heat light. They are loving it and I am wondering if it is ok to leave them out there at night now too. It has been in the low 50s here at night but I have the light out there for them and the temp says about 75- 80 under the light. The coop temp itself is in the mid 60s right now. I have had the inside booder temp down to around 70ish this past week and they all seem to be happy and health so far. Guess I'm just wanting someone to tell me it will be ok so that I can stop trying to make up my mind.