A female duck getting lots of male attention

Spring is on it's way and the ducks are starting to think about getting a bit frisky. The ladies are being followed around by the men. This particular lady in my back garden has 3 suitors, all is quite genial and polite at the moment. In a couple of weeks all hell will break lose and the men will become aggressive and it is not pretty to see the females being harrassed and nearly drowned by the men competing to mount her. We have a mandarin duck that has moved in to our garden, he is very pretty. It would be good if he was able to sire some chicks so we could have more that look like him. Unfortunately if he mates with a mallard the eggs will not be fertilised as their breeds are not compatable. We need a female mandarin to move in then we can have multi species duck neighbourhood