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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 Esperanza

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

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🌿 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: 674389
  Adult

Esperanza
Santa Fe
Argentina
02/21/2026
Pablo Capovilla
Foto
Photography ID: 365192
  Adult

Esperanza
Santa Fe
Argentina
11/26/2019
M. Soledad Zingerling
Foto
Photography ID: 197622
 
Esperanza
Santa Fe
Argentina
04/01/2017
Pablo Capovilla
Foto
Photography ID: 95790
 
Esperanza
Santa Fe
Argentina
04/25/2015
Pablo Capovilla



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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
243730021/02/2026ArgentinaSanta FeCamino entre Esperanza y San Wendelino, EsperanzaPablo Capovilla
121567805/01/2020ArgentinaSanta FeCullen 1502-1600, Esperanza24Eduardo Beltrocco
115300017/12/2019ArgentinaSanta FeCaminos rurales al oeste de la ciudad, EsperanzaPablo Capovilla
113944526/11/2019ArgentinaSanta FeCaminos rurales al Este de la ruta 6 , EsperanzaM. Soledad Zingerling
111015113/10/2019ArgentinaSanta FeParque de la agricultura, EsperanzaPablo Capovilla
92854413/04/2019ArgentinaSanta FeCaminos rurales al Este de la ruta 6 , Esperanza3Mauricio Schmithalter
92846123/03/2019ArgentinaSanta FeCaminos rurales al Este de la ruta 6 , Esperanza3Mauricio Schmithalter
76657007/06/2018ArgentinaSanta FeCampo de los curas - al norte de la ciudad, EsperanzaPablo Capovilla
75314105/05/2018ArgentinaSanta FeBalneario Municipal: "intendente Bertero", EsperanzaPablo Capovilla
74873322/04/2018ArgentinaSanta FeBalneario Municipal: "intendente Bertero", EsperanzaPablo Capovilla
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 21/09/2026.