Mandarin Ducks are colorful ducks living primarily in East Asia (Japan, Korea, and China). Some have spread out, forming small colonies in Europe and even in the United States. In North America, there are Wood Ducks which are related to them and look quite alike, except for coloration.
I have been searching for these ducks to photograph but have not encountered one yet in New Jersey. I took the following photos of a Wood Duck and a pair of Mandarin Ducks at the Busch Gardens in Tampa, FL.