Your Cayuga is only been the drake that he is. Take it easy on himI'm brand new to this forum and I'm a bit late in giving information, but I have a group of Cayuga ducks (two hens, one drake plus one Indian runner hen). We recently acquired three magpie ducklings, one hen, two drakes. They are about three months old now. They've been in their own large outdoor pen where the adult ducks can see/meet them for over a month. We decided to integrate them and things did not go well. Mulder, the Cayuga drake, relentlessly raped Lenore, the magpie hen, at every opportunity. Her brothers tried to intervene, but really they're no match for him. I had hoped that he'd mellow out after a couple days, but he's just gotten worse. He really tore her up so we removed the ducklings from the adult pen and put them back in their own pen. He has three hens who bob their heads at him, but he ignored them and focused all his rapey energy on poor Lenore. I've had it with him and even though he's stunning, he might end up dinner.
I've only experienced the one Cayuga drake, but I'm not impressed with his personality at all.