I have a small flock of 7 hens and one rooster. Most are LF but I have 2 banties (my rooster and a silkie) and 2 chicks. All went well for a long time but lately Lua, my speckled Sussex, has become an evil demon hen. She chases the babies that I let my silkie hatch and viciously attacks my rooster. He fights back but he can't see well because of his head pouf and she often rips feathers out of his neck. I decided she had gotten too aggressive so I took her to my moms for a few days in hopes of taking her down a notch in the pecking order. The day after I brought her back she cornered one of the 6 week old babies and stood on it while pecking it's head and riping out feathers. I'm convinced she was trying to kill it. I ran to its aid and grabbed it, but when I tried to walk away she came at ME! She clawed at me and pecked and flogged me with her wings. I gave her a good kick but she ran at me again, this time intercepted by my roo, whom she attacked and dragged by his head feathers until I grabbed her and stuck her in a cage. I am baffled by this kind of aggression in a hen. I know she's a hen for sure (I've watched her lay an egg and have had enough roosters to know the difference). She's always tried to move up in the pecking order and has been aggressive about treats too but I didn't think much of it. I used to have a little sizzle hen whose head she plucked bald. I don't know what to do with her. I sent her to live with my moms LF flock because she obviously can't be around bantams. At my moms house she's the bottom of the pecking order but still frequently challenges the top hens in an attempt to move up. Fortunately my moms head hen rules with an iron fist and doesn't allow such behavior. Is there anything I can do to stop this aggression issue? I don't trust a hen who would attack people as well as chickens.