what to do with bullying chicken?

[AmericanDwarfChicken]

I don't mind a little chicken drama from time to time, but I've culled a hen for less than this. I won't tolerate very much. These are show silkies, and aside from molting, don't need anyone beating on them or pulling their feathers out.

If you've addressed that they all have at least 4 sq feet per bird in their coop and 10-15 sq feet in their run, and you've put her in jail for a week and that didn't work, she's got something wrong with her, and you wouldn't want that to breed into any chicks anyway.

I’ve also opened up my garden, which is really, really, big. I’m not sure exactly how big, but they’ve been much happier with her separated. I breed cochin (pekin) bantams and I absolutely love them! My friend had 3 silkies and they were absolute sweethearts, other than their rooster, who was aggressive.