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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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Records from Planta de tratamiento de efluentes El Paramillo

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






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📅 06/15/2015 21:52





Geographic distribution


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Species photographs

Last published photographs

Foto
Photography ID: 649189
  Adult

Lavalle
Mendoza
Argentina
11/22/2023
Marcelo Zanotti
Foto
Photography ID: 586105
  Adult

Lavalle
Mendoza
Argentina
11/16/2005
Manuel Godoy
Foto
Photography ID: 576885
  Adult

Lavalle
Mendoza
Argentina
03/15/2024
Pablo Moreno
Foto
Photography ID: 570110
  Adult

Lavalle
Mendoza
Argentina
01/30/2024
Emilio Martin Perez
Foto
Photography ID: 559065
  Adult

Lavalle
Mendoza
Argentina
11/15/2023
Pablo Moreno
Foto
Photography ID: 553378
  Adult

Lavalle
Mendoza
Argentina
10/21/2023
Pablo Moreno
Foto
Photography ID: 544314
  Adult

Lavalle
Mendoza
Argentina
03/22/2023
Marcelo Zanotti
Foto
Photography ID: 527832
  Adult

Lavalle
Mendoza
Argentina
03/07/2023
Pablo Moreno
Foto
Photography ID: 497672
  Adult

Lavalle
Mendoza
Argentina
06/19/2022
Pablo Moreno



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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
217694219/10/2024ArgentinaMendozaPlanta de tratamiento de efluentes El Paramillo, Lavalle12Emilio Martin Perez
203197608/05/2024ArgentinaMendozaPlanta de tratamiento de efluentes El Paramillo, Lavalle1Pablo Moreno
201708601/04/2024ArgentinaMendozaPlanta de tratamiento de efluentes El Paramillo, Lavalle3Pablo Moreno
201254115/03/2024ArgentinaMendozaPlanta de tratamiento de efluentes El Paramillo, Lavalle7Pablo Moreno
197807224/02/2024ArgentinaMendozaPlanta de tratamiento de efluentes El Paramillo, Lavalle1Emilio Martin Perez
197220530/01/2024ArgentinaMendozaPlanta de tratamiento de efluentes El Paramillo, LavalleEmilio Martin Perez
234871722/11/2023ArgentinaMendozaPlanta de tratamiento de efluentes El Paramillo, LavalleMarcelo Zanotti
192546815/11/2023ArgentinaMendozaPlanta de tratamiento de efluentes El Paramillo, Lavalle2Pablo Moreno
190130721/10/2023ArgentinaMendozaPlanta de tratamiento de efluentes El Paramillo, Lavalle3Pablo Moreno
189506607/10/2023ArgentinaMendozaPlanta de tratamiento de efluentes El Paramillo, Lavalle3Pablo Moreno
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 01/10/2026.