I have one Muscovy 2 Rouens M/F, and one Male Pekin the Female Muscovy always seems to be the odd duck out. The males both mated with her and she complied, however now the Male Pekin is being very mean to her taking her by the neck and submerging her head into the water she does have a place to roost however I have stopped letting them free range until we can clip her wings she flew into our neighbors yard and onto my house and we had a hard time getting her back in the pen. We have a large heated coop and fenced in pen. Any ideas on what this behavior is? They were all raised together as ducklings. We didn't know the breeds of them until they were grown.