Hi, this is my first post. One of my bantam hens has suddenly become very aggressive with me - biting my hand and trying to bite my face. She's almost a year old and I raised her and her sister and brother from eggs so they are very used to me and I have not done anything out of the ordinary that I can think of to have caused this. She has always been the one that was picked on a bit by her sister, and I protected her from that. It's just a bit unsettling. She is the only one to lay blue eggs and very precious to me.