Any assistance is greatly appreciated. I have two mallards and one welsh harlequin, and all are males. They are all fighting. They have all been raised together since birth and are now 1 week shy of five months. It got so bad we had to separate them in two separate pens last night. Any ideas? Is this a pecking order thing? Will they "figure it out" like dogs? Or is their version of figuring it out mean death or ostracizing of one or all of the ducks?