Hen attacking other hen what do I do?

[mamaduck1616]

I have 3 Muscovy hens and a Drake. One hen (Mama) is sitting 24/7 on her clutch.

Now I believe the remaining two hens are fighting over the second nest. Daisy was sitting on/off the nest for about a week and then Oreo kinda took over.

Now Oreo proceeds in attacking Daisy constantly when she gets off the nest for her eating/pooping/swimming.

Before Mama began sitting 24/7 she too was going after Daisy. And the drake only has daisy left to mate since the other two are sitting. What should I do with my poor Daisy girl?

 

[Amiga]

I don't know Muscovies, but I have seen people report that separating the ducks temporarily sometimes resets the dynamic.