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Dendrocygna viduata

White-faced Whistling Duck


Dendrocygna viduata

(Linnaeus, C, 1766)
Sirirí Pampa
Irerê

Family: Anatidae
Order: Anseriformes
Class: Aves
Phylum / Division: Chordata
Kingdom: Animalia

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Other common names: Pato Silbón, Pato Viuda.

Synonyms: Anas viduata.





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Conservation status according to BirdLife International: Least Concern


Description


It is a medium-sized duck, easily recognized by its strongly contrasting plumage and upright posture. The head is white with a distinctive black patch on the nape, giving the appearance of a “veil,” which is a key identifying feature. The neck and breast are chestnut, the back dark brown, and the flanks finely barred. The legs are relatively long and grayish, adapted for both swimming and walking.

Geographic distribution: It has a wide pantropical distribution, occurring throughout much of South America, sub-Saharan Africa, and parts of the Caribbean. In South America, it ranges from the northern regions south to central and northeastern Argentina, including Paraguay, Uruguay, Bolivia, and Brazil.

Habitat: It inhabits freshwater wetlands, such as lagoons, marshes, swamps, rice fields, river margins, and reservoirs. It prefers open areas with emergent vegetation and shows good tolerance of human-altered landscapes.

Feeding: Its diet is mainly herbivorous, consisting of seeds, grains, shoots, and green parts of aquatic and terrestrial plants. Small invertebrates are occasionally consumed, especially during the breeding season, providing additional protein.

Behavior: It is a highly social and vocal species, well known for its clear, whistling calls, particularly during flight or social interactions. It is often seen in large flocks and is active both during the day and at night. Unlike many ducks, it frequently forages on land.

Nesting: Nesting usually takes place in dense vegetation near water, where a simple nest made of plant material is built. The clutch generally includes 6 to 12 eggs, incubated by both parents, who also share care of the precocial chicks.

Conservation status: It is classified as Least Concern, with large and stable populations across most of its range. Nevertheless, wetland degradation may cause local declines.


Author of this compilation: EcoRegistros – 22/12/2025

 View related literature






🌿 EcoRegistros Magazine - Related Articles


📖 Issue Nº 5 • Article Nº 3
✍ Julián Tocce
📅 06/15/2015 21:52





Geographic distribution


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Species photographs

Last published photographs

Foto
Photography ID: 671068
  Adult

Gorchs
Buenos Aires
Argentina
02/02/2026
Ricardo Juliano
Foto
Photography ID: 461397
  Adult

Gorchs
Buenos Aires
Argentina
09/11/2021
Ricardo Juliano
Foto
Photography ID: 382835
  Adult

Gorchs
Buenos Aires
Argentina
02/14/2020
Ricardo Juliano
Foto
Photography ID: 294504
  Adult

Parque Nacional Iberá
Corrientes
Argentina
10/13/2018
Ricardo Juliano
Foto
Photography ID: 220198
  Adult

Gorchs
Buenos Aires
Argentina
09/23/2017
Ricardo Juliano
Foto
Photography ID: 77989
  Adult

Gorchs
Buenos Aires
Argentina
01/16/2015
Ricardo Juliano
Foto
Photography ID: 57072
  Adult

Gorchs
Buenos Aires
Argentina
07/26/2014
Ricardo Juliano



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Species vocalizations

Last vocalizations published



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Species videos

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Species reports



 Detail of places sorted by number of records








Page 1
Record IDDateExact timeCountryProvince / departmentPlaceFilmedPhotographedRecorded vocalObservedHeardWounded or deadNumber of individualsUser or BibliographyDetail
242715102/02/2026ArgentinaBuenos AiresEa la 37, GorchsRicardo Juliano
241833619/01/2026ArgentinaBuenos AiresEa la 37, GorchsRicardo Juliano
224167729/01/2025ArgentinaBuenos AiresEa la 37, GorchsRicardo Juliano
213612517/08/2024ArgentinaFormosaReserva Natural FormosaRicardo Juliano
195487224/01/2024ArgentinaBuenos AiresCamino rural, Las FloresRicardo Juliano
171288228/01/2023ArgentinaBuenos AiresArroyo Centenario, Las FloresRicardo Juliano
146086211/09/2021ArgentinaBuenos AiresEa la 37, GorchsRicardo Juliano
134114902/01/2021ArgentinaBuenos AiresCamino de ingreso a Gorchs, GorchsRicardo Juliano
119578714/02/2020ArgentinaBuenos AiresEa la 37, GorchsRicardo Juliano
116078001/01/2020ArgentinaBuenos AiresCamino rural entre Las Flores y Gorchs, GorchsRicardo Juliano
Page 1

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Related bibliography


Artículo Lucero, F. y J. C. Chebez. 2011. Nuevas citas y ampliación de la distribución de algunas aves en las provincias de San Juan, Mendoza y La Rioja. Nótulas Faunísticas N° 71. Fundación Félix de Azara.

Artículo Martinez, F., F. Lucero, R. Calí, D. Valdéz, D. Ferrer y J. C. Chebez. 2009. Registros novedosos de aves para las provincias de Mendoza y San Juan. Nótulas Faunísticas N° 35. Fundación Félix de Azara.



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Recommended citation
Please use the following reference when citing this species account.
EcoRegistros. 2026. White-faced Whistling Duck (Dendrocygna viduata) – Species account. Accessed from www.ecoregistros.org on 27/09/2026.