Bully Hens

[MixedFlockNH]

I am currently trying to merge my young pullets in with my hens and I'm having an awful time I have 3 hens that will pick on just one pullet. If I'm in the coop all is fine but twice we've walked in on them ganged up and stomping her. We then go back to separating them. Any suggestions on what to try?

 

[Ol Grey Mare]

I am currently trying to merge my young pullets in with my hens and I'm having an awful time

I have 3 hens that will pick on just one pullet. If I'm in the coop all is fine but twice we've walked in on them ganged up and stomping her. We then go back to separating them. Any suggestions on what to try?

How many birds total? How old are the pullets? What sort of setup are the introductions being done in (size, layout, etc)? What process did you use for the introductions? How long has this been going on?

 

[MixedFlockNH]

8 hens ( 6 months old and all laying) 1, 5 month old rooster, babies are 3 months old, 6 girls and a roo. The ones bullying are a golden buff ( she. ALWAYS starts it ) a white leghorn, and an Easter egger. The one getting bullied is a white crested polish. None of the others bully, or get bullied. They've been in the same coop for about a month but just separated, two weeks ago I started trying to merge them and it was wonderful for 3-4 days, everyone was happy but now they target this poor little polish and I've gone back to seperating both flocks. Our coop is about 13x13 And the same with the outdoor run, they have plenty of roosts and ladders in both.