I have a flock of three ducks: a male Rouen, a female Rouen and a female Blue Swedish. They get along well and the females are laying eggs. The problem comes when I introduced two adult Muscovy ducks (female and male) the male Rouen started to attack both ducks. The person who sold me the Muscovy recommended that I isolated the male Rouen for couple of days, which I am doing. Now, the female Rouen attacks both of the Muscovy, I don't know what's going on or what to do. If you have any suggestions, I'll appreciate them. Thanks a lot guys!