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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

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





Geographic distribution


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Species photographs

Count: 1518




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Species vocalizations

Count: 7


Audio playerUserDateCountryProvincePlaceSexLife stageIt was observedDetails
Pablo Bruni09/02/2023ArgentinaEntre RíosFederalN/AN/AYesNo
Juan Atenzio10/30/2023ArgentinaCiudad Autónoma de Buenos AiresCaballitoIndistinguishableAdultNoNo
Victor Hugo Michelini06/29/2019ArgentinaBuenos AiresColinas de Peralta ramosMar del PlataIndistinguishableAdultNoNo
J. Simón Tagtachian01/29/2018ArgentinaCiudad Autónoma de Buenos AiresReserva Ecológica Costanera Sur (RECS)IndistinguishableAdultYesNo
Carlos M. Grassini05/05/2013ArgentinaEntre RíosZona central, lagunitas, tanque australiano y molinoReserva Natural Privada El Ceibo♂ ♀AdultYesNo
Jose Luis Merlo10/08/2010ArgentinaCiudad Autónoma de Buenos AiresReserva Ecológica Costanera Sur (RECS)IndistinguishableAdultNoNo
Jose Luis Merlo10/23/2010ArgentinaCiudad Autónoma de Buenos AiresReserva Ecológica Costanera Sur (RECS)IndistinguishableAdultNoNo


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Species videos

Count: 9





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Species reports



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Species records

Count: 6610



Page 1 of 661
Record IDDateExact timeCountryProvince / departmentPlaceFilmedPhotographedRecorded vocalObservedHeardWounded or deadNumber of individualsUser or BibliographyDetail
253269422/09/2026ArgentinaLa PampaEstaba en la Reserva Natural Urbana de General Pico., General PicoHugo Alberto Valderrey
253167421/09/2026ArgentinaEntre RíosEa. Campo Bajo, Ceibas40Gabriel Carbajales
253135819/09/2026ArgentinaEntre RíosCeibas, Ceibas3Gabriel Carbajales
252829916/09/2026ArgentinaLa PampaEstaba en la Reserva Natural Urbana de General Pico., General PicoHugo Alberto Valderrey
252695313/09/2026ArgentinaCorrientesNavegacion Rio Corrientes, Esteros del Iberá15Diego Oscar
252724910/09/2026ArgentinaEntre RíosCeibas120Diego Oscar
252593306/09/2026ArgentinaBuenos AiresLaguna de Ranchos, Ranchos30Pablo Richter
252464806/09/2026ArgentinaBuenos AiresLos ToldosEsteban Argerich
252172405/09/202616:35ArgentinaSanta FeLa Rioja 1107, Santo Tomé18Gustavo Fernando Durán
252026001/09/2026BrazilMato GrossoTranspantaneira, PantanalNicolas Olejnik
Page 1 of 661

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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 24/09/2026.