My d'Uccles do fine in the cold too, the only cold weather problems I have had, is when I used to free range them, they had trouble getting back to the coop at night do to the snow on the ground. And I have a few minor cases of frost bite, other then that, they have all done just fine.
Hens go broody when you don’t want them to… and won’t go broody when you do. 