I've never raised ducks before, so I'm not sure if this is normal and the feathers will change? My rouen duckling is getting in his/her feathers. Black tipped with brown on its neck and around the wings, but the entire belly and tail is solid black. Do you think it's maybe a cross with another duck? It doesn't really matter much, I'm just curious. I thought they got the same feathers as mallards, and my mallard duckling has a cream colored belly. Sorry for the silly question!