I have one pet chicken and decided to get another to keep her company. Percy is a 5 month old pullet. I got a 7 month old pullet of the same breed. They are Rhode Island Reds. The bigger one keeps chasing and pecking the little one and keeping her from the food. I seperated them for 3 or 4 days and put them back together. It was good for a day or two then started up again. I am afraid the older one is pulling out her feathers. What should I do. I currently have seperated them again