The Black-bellied Whistling Duck(formerly called Black-bellied Tree Duck) is native to Central America, from southern US to central South America. The species is split into two subspecies, the northern autumnalis and the southern discolor , which overlap in Central America. Shown is discolor , which has a grey breast rather than rust-colour.
Bills normally pink with orange bridge; the black on bills and feet above is dirt.
Also called "Watch Ducks" in the Americas as semi-tame groups give shrill alarm calls to warn of intruders, as geese do in Europe.
These above are autumnalis subspecies with rust-coloured breast.