We have a problem with our top hen : she keeps picking out the butt feathers from the 3 other hens. We built her a chicken jail and she was in it for 4 days - wednesday morning to saturday night (we put her back in with her flock during the night). This morning, she was picking the feathers off the others again, so I guess the isolation didn't work. She is back in jail for now. I've read that it works for some and notfor others...should we keep her in jail longer this time? If it fails again, should we try the pinless peepers? I'm a bit hesistant to put these on her...should this be our last resort? Has anyone been successful in breaking the feather-picking habit? what did you do that worked?