Recently I posted about losing one of our new buff orpingtons, she has been great and the all of a sudden became lethargic and within a day died. Now we have another buff who has started a neck molt and it has not been cold in Kentucky but normal temps of 40-50 during day and upper 20 to low 30 at night. She is about 9 1/2 months old and today has been acting like the other orpington we lost so we brought her in the garage and put her in the brooding pen with a heat lamp thinking with the loss of feathers and the cold has been uable to keep herself warm and causing this. However we are first time chicken keepers and this is our first winter and don't know what to do we have an austrolorp that is starting to molt but shows no signs of this and would we need to bring her in and keep her warm until she finishes her molt. Any ideas of what could be happening is greatly appreciated.