Dendrocygna autumnalis

The black-bellied whistling duck (Dendrocygna autumnalis) or black-bellied tree duck, is a whistling duck that before 2000 bred mainly from the southernmost United States to south-central South America. It can be found year-round in much of the United States. It has been recorded in every eastern state and adjacent Canadian province.[4] Since it is one of only two whistling duck species native to North America, it is occasionally just known as the "whistling duck" or "Mexican squealer" in the southern USA.
(Wikipedia)