HELP!! chicken attacking chicken

[Bestie_Chicks]

Hi everyone, I have a flock of 4 hens. I got them when they were chicks end of June and everything has been fine with them until recently. My BCM has been attacking my buff Orpington they were raised together and had always lived happily with each other. The attacking got so bad that she was drawing blood from her crest, and pulling out feathers. I separated the attacker my BCM from the rest of the flock and have been keeping her inside my home. After about a week of this I tried integrating my BCM but as soon as she saw my buff Orpington she ran to attack.
I again have them separated but it’s a little frustrating to see. They are both around the same size, although my buff weighs less, the BCM doesn’t let her eat or drink. My BCM also pecks at my other hens but nothing compared to how she attacks my Orpington.
It hurts my heart because my Orpington is the sweetest girl and she’s just getting relentlessly picked on. When I feed them she steps back and watches the rest eat ( I bought 2 feeders to help her). This didn’t help she still waits behind and watches the other girls eat.

 

[Jeanw]

Hello, this thread may be helpful to you:
Thread 'Chickens bullying sister, after 3 years of living in complete harmony'
https://www.backyardchickens.com/th...-years-of-living-in-complete-harmony.1366001/

 

[NatalieP]

How much space is there in the run?

If you seperate a chicken from the flock, you can have issues integrating the seperated chicken. It's best to have a jail where they can see each other but not hurt one another. I've implemented this is a large dog crate. Some people make a jail in the run.

Here's another good read: https://www.backyardchickens.com/articles/chicken-bully-chicken-victim-a-two-sided-issue.73923/

 

[rosemarythyme]

Photos of your coop and run would help.

Clutter https://www.backyardchickens.com/threads/a-cluttered-run.1323792/ would help in addition to the additional feeder, as a 2nd (or 3rd) feeder may not help much if the flock can easily see the lower ranked bird eating.