Where are whistling ducks most widely distributed?

Whistling ducks, which belong to the order Anseriformes, are primarily distributed across tropical and subtropical regions of the world.12

While the genus Dendrocygna includes various species with specific ranges—such as the West Indian whistling-duck, which is endemic to the Caribbean—the fulvous whistling-duck is notable for its exceptionally wide distribution. This species is found in isolated populations across North and South America, India, and Africa. Generally, these long-legged and long-necked birds are characterized by their preference for warm climates.3412