Why is one (the smallest) Muscovy Duckling fighting with the other 3. He/She is breaking their new wing feathers and causing them to bleed. Also She/He is throwing them around. The other Ducklings9 who are at least a1/3 larger, are running from He/She and not fighting back. I have the offender still with His/Her siblings BUT in a cage in the cage. I've never had Ducks Muscovy or ohterwise befor. These Ducklings are 3 days from being 2mos. old. Is this normal behavior and what should I do with the offender if it is not. Thank You for Your time. I would really appreciate it if someone out there who has knowledge about Muscovys could answer my question.