*** Advice Needed *** I have a question that I'm hoping someone can help me with. We have 4 khaki Campbell ducks born in April 2016. They are 7 months old. They are all 4 male and 3 of the 4 are all ganging up on the 4th. It's so bad he now has bald spots on the back of his neck. 1. Why are they doing this? 2. How do I get them to stop? 3. Is it possible that the 3 will kill the other? Any advice is appreciated. Thank you!