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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 Mar del Plata

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: 624616
  Adult

Mar del Plata
Buenos Aires
Argentina
11/30/2024
José Luis Ianiro
Foto
Photography ID: 546001
  Adult

Mar del Plata
Buenos Aires
Argentina
07/15/2023
José Luis Ianiro
Foto
Photography ID: 539922
  Adult

Mar del Plata
Buenos Aires
Argentina
02/10/2023
José Luis Ianiro
Foto
Photography ID: 471391
  Adult

Mar del Plata
Buenos Aires
Argentina
07/09/2021
José Luis Ianiro
Foto
Photography ID: 301619
 
Mar del Plata
Buenos Aires
Argentina
08/20/2018
Hernan Bauret
Foto
Photography ID: 153777
 
Mar del Plata
Buenos Aires
Argentina
09/06/2015
Hector Ortiz
Foto
Photography ID: 111695
  Adult

Mar del Plata
Buenos Aires
Argentina
02/22/2015
José Luis Ianiro
Foto
Photography ID: 111694
  Immature

Mar del Plata
Buenos Aires
Argentina
03/25/2011
José Luis Ianiro



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Last Vocalizations published



Audio playerUserDateCountryProvincePlaceSexLife stageIt was observedDetails
Victor Hugo Michelini06/29/2019ArgentinaBuenos AiresColinas de Peralta ramosMar del PlataIndistinguishableAdultNoNo



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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
243034928/01/2026ArgentinaBuenos AiresAlrededores de Sierra de los Padres, Mar del Plata1Victor Hugo Michelini
232310019/07/2025ArgentinaBuenos AiresLaguna de los Padres, Mar del Plata6Victor Hugo Michelini
226376108/02/2025ArgentinaBuenos AiresReserva Natural Puerto Mar del Plata, Mar del Plata15José Luis Ianiro
226372108/02/2025ArgentinaBuenos AiresLagunas de Punta Mogotes, Mar del Plata2José Luis Ianiro
225577630/11/2024ArgentinaBuenos AiresLagunas de Punta Mogotes, Mar del Plata2José Luis Ianiro
222976718/11/2024ArgentinaBuenos AiresLaguna de los Padres, Mar del Plata1Enrique Chiurla
221380018/11/2024ArgentinaBuenos AiresLaguna de los Padres, Mar del Plata1Victor Hugo Michelini
190147916/07/2023ArgentinaBuenos AiresReserva Natural del Puerto, Mar del Plata17José Luis Ianiro
181561015/07/2023ArgentinaBuenos AiresLaguna de los Padres, Mar del Plata85José Luis Ianiro
178488310/02/2023ArgentinaBuenos AiresLaguna de los Padres, Mar del Plata12José Luis Ianiro
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 11/04/2026.