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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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Conservation status according to BirdLife International: Least Concern

Other common names: Pato Silbón, Pato Viuda.

Synonyms: Anas viduata.


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

 See related literature





🌿 EcoRegistros Revista - Related Articles


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



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Last published photographs

Foto
Photography ID: 629691
  Juvenile

General Pico
La Pampa
Argentina
03/12/2025
Margarita Cervio
Foto
Photography ID: 569379
  Adult

General Pico
La Pampa
Argentina
01/23/2024
Margarita Cervio
Foto
Photography ID: 564871
  Adult

General Pico
La Pampa
Argentina
01/13/2024
Margarita Cervio
Foto
Photography ID: 400311
♂ ♀
  Adult

General Pico
La Pampa
Argentina
06/05/2020
Margarita Cervio
Foto
Photography ID: 391702
 
General Pico
La Pampa
Argentina
02/21/2020
Margarita Cervio
Foto
Photography ID: 307089
  Adult

General Pico
La Pampa
Argentina
12/25/2018
Margarita Cervio
Foto
Photography ID: 223602
  Adult

General Pico
La Pampa
Argentina
10/17/2017
Margarita Cervio
Foto
Photography ID: 174168
  Egg

General Pico
La Pampa
Argentina
11/02/2016
Margarita Cervio
Foto
Photography ID: 128037
  Immature

General Pico
La Pampa
Argentina
07/06/2015
Margarita Cervio
Foto
Photography ID: 126233
  Adult

General Pico
La Pampa
Argentina
11/20/2015
Margarita Cervio
Foto
Photography ID: 33129
  Adult

General Pico
La Pampa
Argentina
01/03/2014
Margarita Cervio



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Last Vocalizations published




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Last Filmings published




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 Reports


 Detail of places sorted by number of records








Page 1
Record IDDateExact timeCountryProvince / departmentPlaceFilmedPhotographedRecorded vocalObservedHeardWounded or deadNumber of individualsUser or BibliographyDetail
227052012/03/2025ArgentinaLa PampaPiletones de Corpico, General PicoMargarita Cervio
196814923/01/2024ArgentinaLa PampaReserva Natural Urbana Benicio Delfín Pérez, General PicoMargarita Cervio
194669313/01/2024ArgentinaLa PampaGeneral PicoMargarita Cervio
124760505/06/2020ArgentinaLa PampaReserva Natural Urbana Benicio Delfín Pérez, General PicoMargarita Cervio
123120521/02/2020ArgentinaLa PampaReserva Natural Urbana Benicio Delfín Pérez, General PicoMargarita Cervio
86049625/12/2018ArgentinaLa PampaReserva Natural Urbana Benicio Delfín Pérez, General PicoMargarita Cervio
62920017/10/2017ArgentinaLa PampaReserva Natural Urbana Parque Recreativo Delfín Pérez, General PicoMargarita Cervio
49999702/11/2016ArgentinaLa PampaGeneral PicoMargarita Cervio
36519320/11/2015ArgentinaLa PampaParque Recreativo Bencio Delfín Pérez, General PicoMargarita Cervio
37092306/07/2015ArgentinaLa PampaParque Recreativo Bencio Delfín Pérez, General PicoMargarita Cervio
Page 1

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Bibliography related


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.



Citation recommended:

EcoRegistros. 2026. White-faced Whistling Duck (Dendrocygna viduata) - Species sheet. Acceded from https://www.ecoregistros.org on 15/04/2026.