Okay, so I posted earlier about my Americana, Clucky pecking the others. Now the others are pecking Clucky and my other americauna, Mercy to the point where they've lost feathers. I catch them pecking once and a while, so I know it's not stress. Clucky has a small bald spot about 2cm wide on her back by her tail, and Mercy has a big bald spot about 1.5 in wide near her vent. What should I do? Do I isolate them from the others? Do I pluck out the feather stubs to make room for new feathers (I assumed this would hurt them, and I don't think it'll help at all, but just making sure) or... What should I do?