I had some bullying going on. I got some pinless peepers. Bullying stopped while wearing them. After a week I took pinless peepers off bullies 1 at a time, 1 each day, starting with lowest on pecking order. By the time I got to the last 2, they were still being mean so they wore the pinless peepers another week. They were instigators, so I did remove those 2 & set them up in a temporary cage for 2 weeks, then reintroduced them 1 at a time. No more Bullying at all by then. If anyone does act up again, I can reuse the pinless peepers, but so far so good. No one drew blood but there were feathers yanked out & the poor ones being bullied were always afraid & not able to eat like they should, so while I hated the pinless peepers idea, it was the only logical choice at the time. It did work in my case.