I have four ducks and I am sure that I have one rouen drake and one rouen hen. I am also sure that my pekin is a hen and my cayuga is a drake. Is that okay, will they pair off or will the drakes beat up the hens? Do I need to get rid of one drake, put the pairs in seperate pens or what? I think it is two late to find more hens or I am not sure what the solution here should be.