We have one buff cochin and she is wonderful. Her name is butter, hatched last May. She has gone broody once already and successfuly hatched 5 eggs from other hens. She was laying regularly, beginning at 5 and a half months - the kids LOvED the lttle eggs. Her foster babies are 2 months old and are bigger than her but she is still mothering them. She has had no trouble with the extreme cold here in an uninsulated coop with 4 standard hens and a roo for company (before going broody - she and the pullets are in the unheated/uninsulated garage for now).