Before I begin, I want to let you know that we have only been raising Muscovy ducks for the past 3 months, so we have a lot to learn and is why I am writing y’all now for expert advice. Now for a little background. We started originally with four adults (1 drake and 3 hens) which are least a year old as they all have full caruncle on their faces. A few weeks later, we added five more ducklings (which grew into 3 drakes and 2 hens), which we raised separately until when they appeared to be fully grown. The ducklings were not added to the other four until we guessed they were big enough not to be hurt by the adults. We free range the ducks during the day and house them all together at night in a large horse stall to protect them from coyotes and such. My question is, ever since we introduced them to the adults, they always seemed to be like two separate flocks; the original adults and the young adults. They hang out separately in the pastures, which is fine I suppose, but when I coop them up at night, the older adults are really mean to the younger ones. Both drakes and hens, the older ducks chase them around, nip at them, and it is not until I turn the lights out that they calm down. The younger ones don’t fight back and I would chalk it up to just them figuring out the pecking order, but everyone by now should have determined who’s in charge and who’s not. The sex of the ducks seems to be no factor in the harassment. It’s like one gang is beating on another Is this normal? Any thoughts on this? It is starting to become unsettling to us. Should we be concerned? Are we doing something wrong?