I started out with one male (pekin) and one female (?) and all was peaceful, I acquired to ducklings in the spring. I prayed they were girls, but they are very much males (2 bully Roeuns). The two rescued boys have reached maturity in that last week and the fighting has been the most vicous I have ever seen it. So, I went and bought two mature female Muscovy's and introduced them two days ago. The bullys have been on lockdown during the day while I am at work. When I get home I let them out to swim, get acquainted with the new girls, and to run around. They eventually end up fighting with the other male. I don't know what to do with them. Should I buy more females and give them more options; are they not interested in the Moscovy's because they are a different breed, or just because they are new. We are adding more fence to make the enclosure twice as big allowing them more space, because I thought that may help. I have never had ducks battle it out this bad. They are just mean to my big pekin male. He can hold his own, but I would like to bring peace back to my little barnyard before a duck or chicken gets seriously hurt. Will they eventually calm down after they battle for who is going to be King? I have always had ducks, chickens and goats and they have lived together peacefully, the two little bad boys enter the picture and it has been a chaos all week. Any suggestions?