Hi all, I have a quad of Muscovy ducks, and I don't know much about the Mallard derived breeds. These two pairs were rescued from a pond in town by my friend who works for Parks and Rec. We figure they were purchased as ducklings and then dumped when they became inconvenient. No matter, they're here now! They have been low on feed, so they're a little thin, and one of the boys has a more yellow beak than the other- does he need any minerals added to his feed? Or is that normal in some? I'm going to keep them separate from my scovies, but I do want to know what breed they are? Thanks all!