Drake ripping female muscoveys feathers out

[Shayenne19]

I have had a male muscovey for 5 years and decided to get him a girlfriend since hes never been around other duck . First week or so was abit rocky bit all in all fine. but now he has ripped out quite alot of her feathers leaving a big bleeding fleshy wing.
She looks so sore. He has also retread to sitting on top of the cage which he has never done before.

Will he stop picking on her eventually or will I have to separate them completely?

 

[cavemanrich]

Is it possible that you got another drake instead of a hen.???
WISHING YOU BEST ,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,, and

 

[Shayenne19]

I'm pretty positive shes a girl.