A pullet I have who I hatched and raised from a chick has gotten aggressive over the past month or two. She hatched in May and was a only chick, I was not able to get anymore chicks to be with her. Her mother is not mean and is a RSL. So Copper, the pullet, will drag her wing like a rooster, and will make low clucking noises and slowly approach you. If she gets close enough, she might peck you. When you hold her, she will make those angry noises and tries to peck your face. She drew blood from my hand, so I ususlly hold her at a safe distance with my winter gloves on. In the coop, she figured out that she can jump on the nest boxes and resch me when I'm counting the chickens. So I have to stand back and even then, she still tries to get you. Ideas why this is happening and what I can do about it?