I. Posted about a week ago that one hen had been pulling feathers out if my other 3 girls and pecking them bloody. I separated them for about a week and tried to put her back in the run today. My big red jumped on her and they fought so i thought maybe that was it big red won and she would be back in the pecking order. But with in 2 min tops she went after the other two pulling out feathers and pecking. I removed her and she is back in isolation. I have tried vics but she wont stop. Not sure what to do with her at this point. Any help would be appretiated!