How do Guineas do in winter weather? I have a heater on their water, they have access to their coop as well as several barns, and there is a heat lamp on in their coop from 4 pm to 8 pm. There are 8 of them , and they were born late july. They can free range daily, and have been very good cooping up in the evening. My question is do they get frost bite? Will they know enouh to stay out of the weather or coop up if it gets too bad? Or should i just keep them in when when the temps drop below 20 ? I do undestand they wont go out much in the snow..so i hear....i live in south west pa. Thanks all!