I noticed my some of chickens are eating feathers. When they are in the chicken run, the rooster will pull feathers from the rear of some hens and eat the feathers. When they are free ranging, some of the chickens will eat feathers from the chickens that are currently molting. Is it due to their diet or lack of something in their diet? I feed them a combination of start and grow, laying pellets and scratch gain. I also feed them table scraps and other vegetables as a treat. Is it just a behavior? Some of my hens are aggressive-(The leghorns) I notice when they free ranging, some of the older chicken chase the pullets. What can I do to change the feather eating? Is it due to molting season? Is it a combination of things? Your input will be appreciated.