i have three hens - 2 feather pick the third one. I've put peepers on the two aggressors but they still pick at the bare spots on her when they are in close proximity - while dust bathing under the coop, or "relaxing". How can I protect the area until feathers grow back? They have plenty of room to roam, shade, food, water, etc. it seems like just a habit at this point and I'm hoping something like Blu-Kot could work, although it seems like reviews are mixed? Please help.