Hi, I have a problem with my pekin hen. She does the mating dance then tries to mount my mallard hen. What is this about? Second problem my pekin hen acts just like a male, very agressive and is biting the necks of my 1 month old ducklings. They are only together when I'm there to supervise but she holds them by the neck and will not let them go. I smacked her easily with a newspaper to get her to let go. She really is becoming a problem. What shoud I do. I built a separate fenced in area for the babies where they adults can see them and the babies can see the adults. This does not seem to make her like them at all. by thew ay is there a way to tell which duck just layed an egg. It is my first egg. I have peking hen and a mallard hen. Thanks for your help.