We have 3 Welsh Harlequins that are about 6 1/2 months old. Our drake got is curly feather about a month ago and has been making his best effort to breed with the girls, though there have been no eggs as of yet. Our gold duck has been far less receptive to him than our silver duck and has a few times tried to climb on top of them while they're mating. Today, I heard some very loud quacking coming from the yard and went to investigate. The drake was chasing the gold duck away from the silver duck, working very hard to keep the silver duck to himself and being very aggressive to the gold duck. He would occasionally catch her and pull her feathers, all the while the silver duck following them both around and occasionally trying to get in between them. I could see where he'd successfully pulled out a few feathers on her back. I separated the drake and put him in their coop, for now, but I don't really know what to do come nightfall. The yard isn't fenced and I wouldn't want predators to get any of them. I'm not really sure what the dynamic is between the drake and the gold duck. She took so much longer to get her quack than the silver one, and it's never been quite as pronounced, could she have some hormone confusion? I've heard of ducks taking on drake characteristics before, but she doesn't have any curly drake feathers. Anyway, if there's a way to restore peace, we might be able to rig a temporary 2nd pen, but if not, we'll have to do something else with our drake.