We are looking into probably getting 2 or 3 Muscovy's after hearing they are quiet and friendly, but after asking around we have been told that they are aggressive and may harass our 4 hens. We want a territorial bird to chase off cats that although not brave enough to attack the chickens definitely make them nervous, but we also want one that if raised with the chickens and us is not likely to be aggressive towards us. I realize that birds can have different personalities, but I am hoping someone can give us some general advice on this since we have heard that they are both friendly and aggressive and are hoping for more information. My other problem is that we don't seem to have any hatcheries nearby that sell sexed chicks and with a bird who may be aggressive we would like to start with chicks, but want to know if there are any potential danger to surprise sex combinations that may make it better for us to get older sexed birds. Any help would be appreciated.