We put a male pekin duck with our females. He immediately went after one in the pond and it looks like all our ducks might be dead by morning. We thought he was drowning her. What is normal behavior for these kinds of ducks in the water? Is he being too aggressive and should we be worried? Or are we just being too paranoid and should be back off? We're thinking of removing him. Any info on the mating rituals of pekin ducks would be greatly appreciated. Thanks!