I have a pekin drake that I raised from a week old. He now has a mate but I can't enter their pen without him biting me. It hurts like h e double hockey sticks when he bites. My neighbor said the reason he bites is because I raised him. She also thinks he is trying to mate me. I am the only person he does this to. If I open the gate to the pen he will come out and chase me around and pass by everyone else!!!! Please help!! Is there anything I can do to stop him from doing this? Is this common?? Thank you in advance for your help.