We have cameras in the normal coop and didn't observe that behavior; however, she was bullied to the point of injury again not long after this thread had last been updated, and has been separated since then. On the day of the bullying incident that led to this separation, she had suddenly become quite withdrawn and slow, and she didn't even try to run away when she was attacked. I thought for sure she was not going to survive, but sure enough she's bounced back again. For now, she's in her own coop/mini-run inside the main run, where she can be "with" the others, but safely separated, and I've recently started letting them have monitored interaction together outside, which seems to be going well. The instigator/bully has been peepered and it seems to be helping.