The Muscovy are considered by some to be ugly birds because of the large red "warty" caruncles around their eyes and beaks. And while you may consider them ugly, if you've ever spent time with a Muscovy you can't deny they are very intelligent birds, funny and full of personality. They are known as the "quackless" duck and hiss ( females making a quiet squealing sound) rather than quack, making them perfect for the small backyard keeper, whose neighbors might not welcome the loud quacking of other domestic breeds. While Muscovy can fly, they are more likely to just fly around than to fly off. They have big strong sharp claws for perching and will fly up to perch on all manner of things. The muscovy female lays in clutches and is an excellent mother. They multiply quickly Â a drake and five ducks can hatch over a hundred offspring in one year. Not only do they make excellent pets, but the eggs are tasty and the meat is compared to a good cut of veal. Raising muscovy in the back yard flock is a joy that has to be experienced to be believed.