Dominant Female Duck behavior?

[SilkiesnFrizzle]

I have one Pekin drake, 2 Pekin and 2 Rouen females. They are all 6-8 months old. I have noticed that one of the Pekin females is asserting dominance over the other ducks. After my drake mated with her, she then nipped at the other Pekin girls neck and looked like she tried to mount her? Is this normal? Is she doing this to show dominance?

 

[QueenMisha]

Yes, female ducks and geese will frequently mount other females as a display of dominance.

 

[SilkiesnFrizzle]

Thanks!