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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
✍ Julián Tocce
📅 06/15/2015 21:52





Geographic distribution


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Species photographs

Count: 1526

Foto
Photography ID: 709790
  Adult

General Pico
La Pampa
Argentina
10/10/2026
Fernanda Ferrari
Foto
Photography ID: 709636
  Adult

Anzenuza
Córdoba
Argentina
11/14/2025
Ruben Ziruffo
Foto
Photography ID: 709191
  Adult

Dique El Garabato
La Rioja
Argentina
10/06/2026
Carlos De Biagi
Foto
Photography ID: 708766
  Adult

General Pico
La Pampa
Argentina
10/09/2026
Hugo Alberto Valderrey
Foto
Photography ID: 708476
  Adult

Departamento Atreucó
La Pampa
Argentina
10/03/2026
Molina Daniel
Foto
Photography ID: 708389
  Adult

Lobería
Buenos Aires
Argentina
09/26/2026
Susana Gomez
Foto
Photography ID: 707764
  Adult

Departamento Utracan
La Pampa
Argentina
10/01/2026
Hugo Alberto Valderrey
Foto
Photography ID: 706706
  Adult

Departamento Santa Bárbara
Jujuy
Argentina
08/18/2026
Eduardo Nadal
Foto
Photography ID: 705943
♂ ♀
  Adult

General Pico
La Pampa
Argentina
09/22/2026
Hugo Alberto Valderrey
Foto
Photography ID: 705096
♂ ♀
  Adult

General Pico
La Pampa
Argentina
09/16/2026
Hugo Alberto Valderrey
Foto
Photography ID: 701971
  Adult

El sombrerito
Santa Fe
Argentina
07/29/2026
Gaston Lisandro Gabinetti
Foto
Photography ID: 701967
♂ ♀
  Adult

El sombrerito
Santa Fe
Argentina
07/29/2026
Peter Vidana



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Species vocalizations

Count: 7


IDAudio playerUserDateCountryProvincePlaceSexLife stageIt was observedDetails
ER-3928Pablo Bruni09/02/2023ArgentinaEntre RíosFederalN/AN/AYesNo
ER-3866Juan Atenzio10/30/2023ArgentinaCiudad Autónoma de Buenos AiresCaballitoIndistinguishableAdultNoNo
ER-2572Victor Hugo Michelini06/29/2019ArgentinaBuenos AiresColinas de Peralta ramos, Mar del PlataIndistinguishableAdultNoNo
ER-1988J. Simón Tagtachian01/29/2018ArgentinaCiudad Autónoma de Buenos AiresReserva Ecológica Costanera Sur (RECS)IndistinguishableAdultYesNo
ER-614Carlos M. Grassini05/05/2013ArgentinaEntre RíosZona central, lagunitas, tanque australiano y molino, Reserva Natural Privada El Ceibo♂ ♀AdultYesNo
ER-97Jose Luis Merlo10/08/2010ArgentinaCiudad Autónoma de Buenos AiresReserva Ecológica Costanera Sur (RECS)IndistinguishableAdultNoNo
ER-34Jose 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: 6845



Page 1 of 685
Record IDDateExact timeCountryProvince / departmentPlaceFilmedPhotographedRecorded vocalObservedHeardWounded or deadNumber of individualsUser or BibliographyDetail
262954113/10/2026ArgentinaCorrientesColonia Carlos Pellegrini6Diego Oscar
262938912/10/2026ArgentinaCórdobaBañados de laguna larga, Laguna Larga20Gabriel Carbajales
262908512/10/2026ArgentinaBuenos AiresLos Carpinchos, Lobería4Susana Gomez
262860512/10/2026ArgentinaCorrientesRuta 40 entre Rincòn del Socorro y Carlos Pellegrini, Parque Nacional Iberá1Diego Oscar
262945310/10/2026ArgentinaLa PampaReserva Natural Urbana Benicio Delfín Pérez, General PicoFernanda Ferrari
262913710/10/2026ArgentinaCórdobaBañados de laguna larga, Laguna Larga10Gabriel Carbajales
262898710/10/2026ArgentinaLa PampaCruce de la entrada a Winifreda y ruta 35, Ruta Provincial n 35 Laguna de los silos36Marcelo Fabio Dolsan
262695110/10/2026ArgentinaEntre RíosCeibas20Diego Oscar
261825409/10/2026ArgentinaCiudad Autónoma de Buenos AiresReserva Ecológica Costanera Sur (RECS)5Diego Oscar
261801409/10/2026ArgentinaLa PampaEstaba en la Reserva Natural Urbana de General Pico., General PicoHugo Alberto Valderrey
Page 1 of 685

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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 15/10/2026.