This is my first winter with chickens. I have 3 bantam RIRs and 2 bantam OEGBs (all pullets) in a small coop- 5 feet long, by 4 feet high, by 2 1/2 feet deep. It was an old packing crate that DH helped convert. They have a covered run that is 10 feet by 12 feet. We added tarps to 2 sides to block wind, rain, snow. Can I safely add any more birds to this set up? I am in a northern suburb of Buffalo, NY and our winters can be COLD!! I am worried about having chicksicles this winter and DH is drawing the line at garage birds. Can these breeds of banties survive the cold? Does the coop NEED to be insulated? It is so small that insulating it may prove tricky. Is the coop small enough that their bodies can heat it? Or would a light be sufficient for heat? If a light would work, how long each night would you run the light? Any help or suggestions would be greatly appreciated! GO BILLS!!!