We rehomed our two rouens. At their new digs, they share a large house and a smallish pond with two magpies and 5 call ducks. We went to visit them a week or so after they moved, and saw our old drake continually climbing upon the female magpie and holding her underwater for what seemed like a very long time. The new owner said she had never seen him do that. While he was doing it, "his" duck and the magpie drake were pecking at him, apparently trying to get him off. I would feel awful if he drowns her, or is this just normal? The rouens are so much bigger than the magpies...