Hullo! I just posted a ventilation query in the 'coop and maintenance' forum, but I have another question for you all. One of my RIRs has a frostbitten comb (just became evident this morning), but wants to be outdoors. We live in Wisconsin where it is currently 15degrees. I've rubbed vaseline into her comb. Is it okay for her and the other nine girls to be outdoors? The coop temperature is currently in the mid-20's. We try to keep it at or slightly above 15deg at night. Thanks!