White-faced Whistling-Duck

• Its Spanish name, suirirí, is onomatopoeic and comes from its call: in Argentina they are commonly seen flying at night, giving a "sirirí, sirirí" that carries a long way.
• It is one of the few ducks with markedly nocturnal habits.
• It lives on both sides of the Atlantic, in the Americas and in Africa, a distribution uncommon among the ducks.

Skeleton type

Vertebrate - internal bony skeleton (bird)

Habitat and environment

Wetlands of the Americas and Africa. In the New World it reaches north to Costa Rica and possibly Nicaragua, and to the south occupies Colombia, Venezuela, the Guianas and the Amazon basin as far as central Bolivia, Paraguay, Uruguay and central and northern Argentina. West of the Andes it reaches Ecuador and Peru, with records in Chile

Gestation / incubation

27 days

Litter / clutch size

8

Sources consulted: IUCN Red List (BirdLife International 2016); Monteleone y Pagano 2022, Listado de las Aves Argentinas (Aves Argentinas AOP); Wikipedia (Dendrocygna viduata); Bernis et al. 1994, Ardeola (nombres castellanos SEO)

Best time: All year round in the tropical wetlands of the Americas and Africa

The pins mark the parks where its presence is documented.