I have read all the threads in this forum and just can't get to the bottom of some recent behavioral problems, so am hoping for advice! We have 4 hens, all just over a year, raised together. They've been good together until two weeks ago. They are (in recent pecking order, before stuff started happening): A. Rhode Island Red B. Red sex link C. Buff Orpington D. Wyandotte We came home one night to see C getting attacked by A, B and D in the yard, repeatedly. We thought C was provoking it because she'd get really puffed up, would run around, and then they'd attack her. They were in the yard with no shortage of activities, so we don't think it was boredom. We separated C for 4 days and ruled out broodiness (she didn't care to sit in nest). After that separation, we put her back in yard with others and observed, and they all immediately began attacking her again. It became clear that B was the instigator (i.e. she'd start running at C, and then A and D would join in the attack), so we separated B for 5 days. A and D were just fine to C without B in the mix. When they were separated, they could see B through chicken wire; we just rotated B and A/C/D in coop and yard at different times. Last night, we tried putting B back out in the yard with everyone else--hoping that a few days away had re-set her at the bottom of the order--and she again led the other two in attacking C. They chase C until two of them can sit on her, and then peck at her head. They haven't drawn blood, but I think that if they weren't broken up, they'd do that (i.e. it seems more violent than just re-establishing pecking order). We are at a loss and would love any tips. We currently have B separated again (everyone else is getting along just fine without her), and this time, have her totally separate in the garage with no sightline to the other hens. Short of getting rid of B, any other suggestions for reestablishing peace in the flock? Thanks!