One of my Red Sex Links has very few neck feathers and many of her butt feathers are missing. Her name is Houdini. Don't know if she is molting, or, if other birds are pecking at her. (Last evening, I checked the coop with a flashlight. I found Houdini cuddled on the floor, not on one of the roosts). I put some Vick's Vapo-Rub on Houdini and went inside for the night. Today, when I spread some scratch, I noticed that Houdini would come to the scratch, but, she would run away when other girls came close to her. Please, make suggestions !!!!!!