mine is a little over three months and i keep finding his belly feathers all over the house. He is a barred muscovy so I am kind of excited, I'm not sure what he will turn out like ps. his voice is also starting to change, getting all whispery. he is loosing the sweet little chirp he used to have!
I think their first molt is around 10 or 12 weeks. Your duckling will probably lose most of the barring except for on it's belly & back but that might not happen completely until their first adult molt, I forget, really.
hes 13 weeks actually, and just started loosing his feathers. i keep finding them haha. when is his adult one?
Actually I think that they will lose the barring with their juvenile molt. Adult molt is during the first fall.