I am relatively new to having Chickens and I wanted to post out here to see what feedback I get on a little potential henhouse issue. I noticed some of my ladies had some "chewed" up feathers. Could this be feather mites or lice? Could this be some nutritional deficit? Or could this be from feather peckers? I have one hen who seems exceptionally interested in eating feathers at the moment. However, she seems to be the one with the most damage to her feathers as well. Here are a few pictures.