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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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Records from Parque Nacional Iberá

Conservation status according to BirdLife International: Least Concern

Other common names: Pato Silbón, Pato Viuda.

Synonyms: Anas viduata.


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

 See related literature





🌿 EcoRegistros Revista - Related Articles


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



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Last published photographs

Foto
Photography ID: 378152
  Adult

Parque Nacional Iberá
Corrientes
Argentina
01/21/2020
Jorge Omar Lanza
Foto
Photography ID: 343148
  Adult

Parque Nacional Iberá
Corrientes
Argentina
07/08/2019
Jorge Schlemmer
Foto
Photography ID: 327903
  Adult

Parque Nacional Iberá
Corrientes
Argentina
03/16/2019
Alec Earnshaw
Foto
Photography ID: 320909
♂ ♀
 
Parque Nacional Iberá
Corrientes
Argentina
09/09/2013
Gabriel Moresco
Foto
Photography ID: 310381
  Adult

Parque Nacional Iberá
Corrientes
Argentina
01/06/2019
Jorge Omar Lanza
Foto
Photography ID: 294504
  Adult

Parque Nacional Iberá
Corrientes
Argentina
10/13/2018
Ricardo Juliano
Foto
Photography ID: 244136
  Adult

Parque Nacional Iberá
Corrientes
Argentina
01/23/2018
Jorge Omar Lanza
Foto
Photography ID: 244093
  Adult

Parque Nacional Iberá
Corrientes
Argentina
01/23/2018
Jorge Omar Lanza
Foto
Photography ID: 176613
♂ ♀
  Adult

Parque Nacional Iberá
Corrientes
Argentina
10/08/2016
Roberto Battaglia



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Last Vocalizations published




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Last Filmings published




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 Reports


 Detail of places sorted by number of records








Page 1
Record IDDateExact timeCountryProvince / departmentPlaceFilmedPhotographedRecorded vocalObservedHeardWounded or deadNumber of individualsUser or BibliographyDetail
201863318/03/2024ArgentinaCorrientesRuta 40 entre Rincòn del Socorro y Carlos Pellegrini, Parque Nacional Iberá1Diego Oscar
167287707/11/2022ArgentinaCorrientesPortal Cambyretá, Parque Nacional Iberá2Diego Oscar
208493530/10/2022ArgentinaCorrientesPortal Laguna Iberá, Parque Nacional Iberá3Faustino Hollmann
148499015/10/2021ArgentinaCorrientesPortal Cambyretá, Parque Nacional Iberá1Luis Emilio Lorenzo
148493014/10/2021ArgentinaCorrientesPortal Cambyretá, Parque Nacional Iberá6Luis Emilio Lorenzo
120696118/02/2020ArgentinaCorrientesPortal Cambyretá, Parque Nacional IberáAndres Teran
118002821/01/2020ArgentinaCorrientesPortal Cambyretá, Parque Nacional IberáJorge Omar Lanza
115226122/12/2019ArgentinaCorrientesPortal Cambyretá, Parque Nacional IberáDamian Alejandro Lozano
94574114/07/2019ArgentinaCorrientesLaguna Ibera, Parque Nacional Iberá10Pablo Matías Jusim
95149008/07/2019ArgentinaCorrientesArroyo Corrientes, Parque Nacional IberáJorge Schlemmer
Page 1

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Bibliography related


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.



Citation recommended:

EcoRegistros. 2026. White-faced Whistling Duck (Dendrocygna viduata) - Species sheet. Acceded from https://www.ecoregistros.org on 29/03/2026.