I have 12 chickens in all. 6 Brahmas (including one cockerel), 3 Rhode Island Reds, and 3 Tetra Tints. One of the Tetra Tints is very mean. She pecks all of the other chickens, and me. It's gotten to the point where I've bled. I'm trying to convince my family to get rid of her, but they refuse, because they're not the ones getting pecked. I'm very frustrated about this, what do I do?