honestly, for a quick simple solution to bullying hens, put on the bits. like i said, 2 days & mine where all fine.
the problem when they draw blood, it attracts the rest of them then it turns really nasty.
the 6 RIR's pinned the white one (does anyone know here breed??) to the ground and they all pecked her. if she darent get up they'd be back on her. now, no problems.