We have 3 Silver laced Wyandottes in our flock we just call the Evil sisters. Introducing any new bird is a HUGE hassle because they gang up on her horribly. This weekend I let the new hen out of the meet and greet box and the Evil sisters immediately piled on her even though she's been in their run for over a week. It took 45 minutes before I could keep them from attacking enmasse. One on one skirmishes I just let happen so they can settle pecking order, but not a mob attack. Later that afternoon my husband had his banties out ranging when I heard screaming and raced around the house to see one of the Wyandottes standing on a banty hen with both feet trying to peck her eye out I booted that Evil hen about eight feet. She was unhurt and later tried to get another banty before I could get them rounded up and back in their safe run. I think it may be time to make Evil stew!