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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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🌿 EcoRegistros Magazine - Related Articles


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





Geographic distribution


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Species photographs

Count: 1511

Foto
Photography ID: 697350
  Adult

Bañado (ruta 40)
Santa Fe
Argentina
07/19/2026
Gaston Lisandro Gabinetti
Foto
Photography ID: 697326
♂ ♀
  Adult

Bañado próximo a Toba (ruta 3)
Santa Fe
Argentina
07/19/2026
Peter Vidana
Foto
Photography ID: 695333
 
Mar Chiquita
Buenos Aires
Argentina
11/22/2025
José Luis Ianiro
Foto
Photography ID: 694921
♂ ♀
 
San Miguel del Monte
Buenos Aires
Argentina
07/14/2026
Hernán Tolosa
Foto
Photography ID: 694388
  Adult

Mar Chiquita
Buenos Aires
Argentina
10/11/2025
José Luis Ianiro
Foto
Photography ID: 694270
  Adult

Mar Chiquita
Buenos Aires
Argentina
10/04/2025
José Luis Ianiro
Foto
Photography ID: 693895
  Adult

Mar del Plata
Buenos Aires
Argentina
07/13/2025
José Luis Ianiro
Foto
Photography ID: 692756
  Adult

Lago artificial en la Usina
La Rioja
Argentina
06/19/2026
Carlos De Biagi
Foto
Photography ID: 692581
♂ ♀
  Adult

Navarro
Buenos Aires
Argentina
06/23/2026
Hernán Tolosa
Foto
Photography ID: 692125
♂ ♀
  Adult

San Miguel del Monte
Buenos Aires
Argentina
06/19/2026
Hernán Tolosa



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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



 Detail of places sorted by number of records






Species records

Count: 6579



Page 1 of 658
Record IDDateExact timeCountryProvince / departmentPlaceFilmedPhotographedRecorded vocalObservedHeardWounded or deadNumber of individualsUser or BibliographyDetail
250852212/08/202612:50ArgentinaBuenos AiresRuta Nacional 22630Santiago Juan Torres
250787609/08/202612:26ArgentinaFormosaRuta sin nombrar, Fortín La Soledad6Gustavo Fernando Durán
250756808/08/202612:26ArgentinaEntre RíosCeibas11Gustavo Marasco
250755408/08/202612:46ArgentinaEntre RíosCeibas2Gustavo Marasco
250748608/08/202612:26ArgentinaEntre RíosCeibas11Jorge La Grotteria
250740208/08/202612:46ArgentinaEntre RíosCeibas2María Alejandra Sosa
250735208/08/202612:26ArgentinaEntre RíosCeibas11María Alejandra Sosa
250720208/08/202612:46ArgentinaEntre RíosCeibas2Jorge La Grotteria
250601903/08/2026ArgentinaCorrientesRuta 40 entre Carlos pellegrini y Galarza2Diego Oscar
250555102/08/2026ArgentinaCiudad Autónoma de Buenos AiresReserva Ecológica Costanera Sur (RECS)Nicolas Olejnik
Page 1 of 658

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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 13/08/2026.