I have two Khaki Campbell ducks, one hen & one drake. The drake has developed an obsession for my black star chicken hen. Chocolate (black star) has a squirrel tail (crooked tail) and I guess it's a sexy thing to a drake because he torments her something fierce. It has gotten so bad, that when I go outside she runs to me and stays near me all the time.When I open the pop door for the chickens, he stands near by and watches for her; as soon as she is out he runs at her and tries to mount. She fights him off most of the time, but sometimes he get hold of her feathers and won't let go. In the beginning the other chickens (especially the dominant hen) attacked him every time he went after her, but I guess they gave up helping her. Yesterday was the closest he has come to dieing. I put fresh watermelon out for all to eat and as soon as Chocolate got a beak full, Tuck (the %$#*ing drake) tried to mount her. She couldn't even eat in peace for a minute, so I ended up chasing him down and locking him in my empty chick run till she was done. When the weather cools down, I'm planning on building a duck pen. Right now the ground is like concrete, it has been so hot and dry, and there is no way to get the pen up. I can't keep a full grown duck in the chick run either, since I have chicks that I take outside before the temperature gets too hot for them. Besides it's only secure enough to keep chicks in, not a determined duck. I'm just hoping that once the pen is built and he comes to terms that he can't have her, that all will be peaceful again in the backyard. But I'm always open to try roast duck too.