Nothing bad, she never breaks the skin and even when she pecks or bites me it is not what I've experienced before. I pinned her down for a few seconds today when she came at me instead of holding her and it seemed to work!How aggressive is the hen? Does she draw blood? How much? I raise gamefowl/junglefowl crosses and here the aggression has not yet been bred out of them. What you are seeing is probably nothing compared to what chickens can do to each other, us and potential predators.