Well the first one I had was when I first started. She was affected really easily by cold temperatures, and was not a great free ranger, and she stayed to herself. She was so friendly to people though. I don't know why I keep calling it a girl, as I think it was a young cockerel. Anyway. She died a almost 2 months after we got her.I have 2 d'uccles originally and love them so much. We got 4 mille fleur d'uccle chicks and 4 polish/phoenix chicks. I havent had a problem with any of my bantams in the cold. Sometimes my duccle hen will take an hour nap in the coop when it is cold and windy but just cold seems to be no problem. It was the heat over the summer that had me worried. What do you mean unthrifty? By the need to heat the barn? That is too bad they are really such a delightful bird. I agree about a heated barn, I sure miss sitting in a lawn chair watching their antics,, oh spring hurry up!!