I am new to the art of raising chickens. My 3 year old Rhode Island red has plucked the majority of her feathers but acts the same as she always has. No odd behaviour . She free ranges on our southeast minnesota property and lives with my two goats that she has adopted. She has stopped laying and has begun to crow like a rooster on occasion. I am considering putting her in a spare dog crate in my home and keeping her warm indoors during the winter months but I don't want her to become stressed and lose any more feathers. Our local farm vet is also stumped. Any suggestions would be greatly appreciated. Mary is a great member of our family and we would hate to lose her.