I have a bully. I watched her several times following and chasing my most docile hen. I picked up the victim hen and noticed her back had been picked! I’ve got her cleaned up and put some wound care on it and I have them separated right now. I just don’t know how to get the behavior to stop. She’s the only hen getting picked on, and there is only one clear aggressor. They are all about 8 weeks old, and we’re hatched and raised together. Photo of her back. Also a photo of my little flock. The blue arrow is the one getting picked on (she’s laying down and hard to see) the red arrow is the bully (she’s always running away and is the most skittish of them all)