Hello! I have twelve hens and one rooster (cockerel? 18 months old). I noticed that only five are laying (less light, breed, some molting), so he was overmating them, and their shoulders were getting pretty torn up. They always showed some wear, but when all were laying, it was spread out enough, in my opinion. So, I separated him into an adjacent yard where they share a fence line, so he still protects them from hawks, calls them to scratch, etc. He has his own coop at night, too. But tonight it is going to be less than 15 degrees F. Is it going to be too cold for him to be alone? The coop is not insulated, but there are no drafts and good ventilation. It is 18 sq feet. I can stick him back in with the girls at dark, but that means I'd have to go grab him at daybreak, and even then I'm not sure if he wouldn't try to mate them while the coop light is on (from 5am). Please tell me if you know whether he will be warm enough. And if tonight isn't, what IS too cold for one chicken to roost alone? Thanks so much!!