I need help on how to get different age groups of duck to get along. I have a male Pekin with 2 female Khaki Campbell/Buff (not sure what they are) that have been together for over 1 year now. We now have 2 new Pekin and 2 mallards. My older Pekin keeps bullying the 2 new Pekins. All 3 sets of ducks are separated right now, but I would like to have them all together. Any suggestions on how to get the older Pekin to stop bullying?? One of my older KC/Buff females has also been nesting on her eggs for about a week now. I am afraid that if she hatches any ducklings, they will also get bullied. If I remove the older Pekin from his females, they younger Pekins do not mess with the females or vice versa nor do they mess with the even younger mallards. Thanks!!