Incubation time is 28 days. Eggs are blue - green to white in colour. The Muscovy is not quite sure whether it is a duck or a goose. It is not descended from the mallard. It can cross breed with them but usually doesn't want to.
Any offspring are infertile.
Muscovies have rather bare faces with red 'caruncles'. Males faces are more covered in red than females. The hissing grazing muscovy loves complete freedom, keeping the local animals in check and enjoys the odd visit to a pond. This South American breed is worth keeping as it not only hatches its own eggs but any others that are put under it. Muscovies come in several colours including black, white, pied or white winged and an interesting lavender.