They are a very hardy breed with little health problems. Muscovy will take care of the unwanted bugs. They are quite and muscovy ducks will make hissing, huffing, and cooing sounds but they will quack went they are hurt or scared. Muscovy are a big duck that will get between 10 to 15 pounds for males and 6 to 8 pounds females. They have great meat with little fat and a lot of protein. Muscovy are also great egg layers, they can lay 180 eggs a year and they can keep laying for over 10 years.