This strange-looking duck is a "Muscovy Duck" (Cairina moschata). It is probably an escaped or released pet duck since they are not normally found in the wild. Sometimes they will breed with other ducks, resulting in some really "ugly ducklings"! I did see a duck that appeared to be a cross between one of these and a Mallard. Actually, the ducklings of this type of duck is yellow and brown, they don't have the red patch of skin. Only males have the red patches, what a strange type of "makeup"! According to a website I found, these ducks are "quackless". They can be aggressive, another good reason not to feed the wildlife!