I thought one of hens was molting on her neck but then today I saw another hen picking and eating her feathers. Sweet Moochie did nothing except make little noises and blink. And Moochie was feather picking a rooster that we recently got rid of. Why do they do it? How do I stop it? Will Blu-Kote supress the feather picking and let the feathers grow back? Or should I use that hot pick stuff?