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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




Primeras evidencias del Sirirí Pampa (Dendrocygna viduata) en la provincia de Río Negro, Argentina
EcoRegistros Revista Nº 5 - Article Nº 3
Publish by: Julián Tocce
Published date: 06/15/2015 21:52



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Last published photographs

Foto
Photography ID: 658837
  Adult

Reta
Buenos Aires
Argentina
10/21/2025
Eduardo Cusano
Foto
Photography ID: 658836
  Adult

Reta
Buenos Aires
Argentina
10/21/2025
Eduardo Cusano
Foto
Photography ID: 658835
  Adult

Reta
Buenos Aires
Argentina
10/21/2025
Eduardo Cusano
Foto
Photography ID: 505674
  Adult

Reta
Buenos Aires
Argentina
08/20/2022
Eduardo Cusano
Foto
Photography ID: 222552
  Adult

9 de Julio
Buenos Aires
Argentina
10/07/2017
Eduardo Cusano
Foto
Photography ID: 221574
  Adult

Chacabuco
Buenos Aires
Argentina
10/01/2017
Eduardo Cusano
Foto
Photography ID: 189058
  Adult

Trenque Lauquen
Buenos Aires
Argentina
02/02/2017
Eduardo Cusano
Foto
Photography ID: 178496
  Adult

Ceibas
Entre Ríos
Argentina
12/03/2016
Eduardo Cusano



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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
237963525/10/202514:10ArgentinaBuenos AiresRuta Nacional 36Eduardo Cusano
238230421/10/2025ArgentinaBuenos AiresAlbufera de Reta, RetaEduardo Cusano
163237720/08/2022ArgentinaBuenos AiresAlbufera de Reta, RetaEduardo Cusano
62550807/10/2017ArgentinaBuenos Aires9 de JulioEduardo Cusano
62261301/10/2017ArgentinaBuenos AiresChacabucoEduardo Cusano
57072630/04/2017ArgentinaEntre RíosCeibasEduardo Cusano
54101711/02/2017ArgentinaCiudad Autónoma de Buenos AiresReserva Ecológica Costanera Sur (RECS)Eduardo Cusano
53928302/02/2017ArgentinaBuenos AiresTrenque LauquenEduardo Cusano
53113822/01/2017ArgentinaCiudad Autónoma de Buenos AiresReserva Ecológica Costanera Sur (RECS)Eduardo Cusano
52774214/01/2017ArgentinaCiudad Autónoma de Buenos AiresReserva Ecológica Costanera Sur (RECS)Eduardo Cusano
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 09/03/2026.










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