Waterfowl are much less common in the tropics than in colder areas in the northern or southern hemisphere.
Andean Duck (Oxyura ferruginea) Male|
The Andean version of the North American Ruddy Duck.
Northern Screamer (Chauna chavaria) |
Screamers are very lerge birds usually seen in pairs in marshes.
Torrent Duck (Merganetta armata) Female|
Otún Quimbaya Wildlife Sanctuary, Pereira, Risaralda, Colombia
A unqiue duck found in fast-moving Andean streams.
Black-bellied Whistling Duck (Dendrocygna autumnalis) |
REGUA, Cachoeiras de Macacu, RJ, Brazil
Whistling Ducks, genus Dendrocygna, are the most common in my opinion in tropical America.