I have 2 male muscovy ducks and 1 female pekin duck. I have 15 chickens. Both the male ducks chase down only this one hen I have and hold her down and they do their thing. I have yet to shee them show interest in the others. Is this normal? They NEVER show any type of interest in the pekin and she is the one ALWAYS the one trying to instigate that she is ready. Are my ducks just confused? They grew up from babies with the hens and maybe thats it. They think they are a rooster?