Muscovy Duck, Cairina moschata, at Hermann Park in Houston, Texas.

The Muscovy duck is a large duck native to Mexico, Central, and South America. Small wild and feral breeding populations have established themselves in the United States, particularly in the lower Rio Grande Valley of Texas and South Florida as well as in many other parts of North America, including southern Canada. Feral Muscovy ducks are found in New Zealand, Australia, and in parts of Europe.