Muscovy fighting getting worse - at my wit's end!

[StinkyAcres]

Do you know which girl or girls is doing this?

Yes. Winona mainly hurts Jeanette and Jeanette mainly hurts Willoughby. Although they all take turns going after each other...except for Willoughby now - she runs away from all the other ducks.

I think if I were to get rid of two it would be Winona and Willoughby. Willoughby will do fine with a chicken flock so I am looking for a new home for her. I'm afraid Winona is just too nasty to rehome.

I don't understand why they behave like this. I thought hormones but this time of year they should be mellowed out.

At this point I feel I've done all I could and it's just bad genetics.