Hello, I just got 5 new Muscovy hens and most of them are laying. I got them for my male and they won’t let him mate...if he try’s they fly up on a roost, but if he catches one of the girls he will pin her down and just run his bill across her back. Why is this? The hens came from a huge flock of over 100 and where free range. Any advice is greatly appreciated thank you