I do provide nighttime heat lamp for my silkies if it gets really cold and windy(below 10) This year I have a new coop and the ceilings ae 8 feet high so I will give them a heat lamp over there roost at night if it gets below 10,they are just so little and fuzzy I can`t stand the thought of them being cole.My big girls and guys don`t get heat lamps,they are maine tuff