I went into the run to spend some time with my girls a couple of days ago and had my 2.5 year old RIR in my lap and noticed she was shivering. It wasn't horribly cold that day, around 50. She is definitely the low girl on the totem pole and has had feathers pulled. Plus she has had crop surgery and spots on her chest that will never grow feathers back. She wears a Birdie Bra to support her crop and keep her warm. She has been acting fine, eating and drinking normally. I brought her in the house and she is acting fine with no shivering. There is a very strong cold spell coming, and I'm reluctant to put her back outside, but I don't want to get her too used to being in the house, either. Any suggestions?