The Muscovy Duck, Cairina moschata, is a large duck which is native to Mexico, Central and South America. A small wild population reaches into the US in the lower Rio Grande River basin in Texas. There also is a significant feral population in southern Florida and southern Texas. The Muscovy Duck has also occurred as far north as Virginia.
The wild Muscovy Duck is all-dark apart from the white in the wings, with long talons on its feet and a wide flat tail. The male is 86 cm long and weighs from 2.1 to 3.2 kg, much larger than the 64 cm long, 970 g to 1.3 kg female. His most distinctive features are a bare red face with a pronounced caruncle at the base of the bill and a low erectile crest of feathers. The drake has a dry hissing call, and the hen a quiet trilling coo.