I have 7 girls, the two large ones have been the dominant hens. They can be downright mean! Violet and Lily came together when I got them, and always slept together on the perch. Lily has been higher in the pecking order than Violet. The other 3 are at the bottom of the pecking order. Violet suddenly, about 4 days ago, became aggressive and her aggression has a specific target - Vernie, one of the three at the bottom of the pecking order. She goes out of her way to attack her. Only Vernie, no one else. I will find her, and others, up on the perch to escape the turmoil and attacks. I noticed in recent weeks that Violet no longer sleeps with her old buddy Lily. Violet has just finished a hard molt, and her behavior was fine during the molt. I thought molt was spelled moult, but spellcheck keeps changing it. Bah. I also noticed that Violet is walking around tall, like a rooster, and her tail is spread vertically. What is going on? I never saw anything like this before. She is causing upset in all of the girls and I'd like to get it to stop if possible. Thanks!!