Hi everyone. I have a pair of Rouen ducks that live happily in my aviary with chickens and pigeons. They have a filtered pond and get to free range a few times a week. I have never had trouble with this arrangement. The only time I've seen the drake 'snap' at a chicken is when his lady needs to get in the nest box. Never mind that there are two in there. If the lady wants the one that is occupied, that is the one he shall get for her. Otherwise all is harmonious. I would love to get a pair of Black Cayauga ducks from a friend that can sell me some hatching eggs in April. Do you think I would have a problem if I tried to introduce another male duck? I know to breed them I would have to separate the pairs for a few weeks before collecting the eggs for hatching, but the rest of the time I would like them to live in the aviary with the rest of the flock. Any input would be greatly appreciated. If it would be an issue, I may just keep a couple Cayauga hens, instead of a pair.