I have 4 ducks in my coop, one male and three females that are about 4 months old, and have been together since their hatching. I recently introduced them to 15 of my Road Island Hens and one Road Island rooster. I have two coops, one for the chickens, one for the ducks where I keep them at night, after 2 days of being together, with water and food, I started to hear some commotion out back. I went out and saw a female duck that was wet and had a bit of feathers missing, but no blood. I thought it was the chickens, so I separated them. I herd more violent duck quacks, and I saw that one of my female ducks started harassing another female duck. She seems to be taking feathers from her neck and sitting on top of her like she is matingI don't know if she is protecting her male or what so please HELP!!