Hi! I have a rhode island red who is about 3-4 years old, very healthy, happy, no signs of sickness, and loves to run around, be outside, and get attention. But.... she's molting.....and the usual temperature is 30 or below (F). And at night, even colder. She's losing a ton of feathers, which have accumulated all over the coop and run. I a worried she could either get frost bite on her exposed skin, or just get really cold and die. Any suggestions on how to deal with this, keep her warm, or is this totally fine and normal for chickens to do?