I recently got rid of my rooster (about 2 weeks ago) because he was just tearing up the hens as well as attempting to spur me. I had no trouble dealing with him, but I didn't like the girls having bare backs and bald heads. He also made them hide under the coop whenever I walked in there, which they never did before he "aged up". The day after getting rid of him, the girls would walk up to me and ask for pets/treats. I had left their saddles on so that their feathers could at least grow back enough to cover their backs.Today I took off saddles on two of the other girls that had to wear them. While Rhonda was sitting down sweetly, waiting for me to take the saddle off, Ginger walked over and violently attacked her head! It looked just like Lucifer did when he was "learning". Then Cleo walked up and did the same thing! Rhonda, in her fright, took off without me removing the saddle. All the girls chased her and attacked her head. It was the awfullest thing. She lapped the run twice, then went up into the coop. I shut the door to keep the other hens out, even though Cleo and Ginger tried to go in there a few minutes after. I caught Rhonda and took her saddle off, then left her in the coop and opened the door so she could go out, but I'm curious, what could make the hens act like this? Why are they so violent to one of their flock? Did pulling out the rooster screw up the flock dynamic? How long until they straighten it out? Thanks.