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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 Las Flores

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: 553253
  Adult

Las Flores
Buenos Aires
Argentina
10/14/2023
Mauricio Roberto Saavedra
Foto
Photography ID: 538916
♂ ♀
  Adult

Las Flores
Buenos Aires
Argentina
06/19/2023
Mauricio Roberto Saavedra
Foto
Photography ID: 247461
  Adult

Las Flores
Buenos Aires
Argentina
02/12/2018
Diego Carus
Foto
Photography ID: 43512
♂ ♀
  Adult

Las Flores
Buenos Aires
Argentina
01/27/2014
Gustavo Puente
Foto
Photography ID: 10959
♂ ♀
  Adult

Las Flores
Buenos Aires
Argentina
01/01/2012
Hernán Tolosa



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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
196305925/01/2024ArgentinaBuenos AiresParque Plaza Montero, Las Flores1Elsa Longo
195487224/01/2024ArgentinaBuenos AiresCamino rural, Las FloresRicardo Juliano
195065619/01/2024ArgentinaBuenos AiresArroyo Centenario, Las FloresHernán Tolosa
190101814/10/2023ArgentinaBuenos AiresLas Flores, Las FloresMauricio Roberto Saavedra
178156019/06/2023ArgentinaBuenos Aires"Las Flores--Parque Plaza Montero, Las FloresMauricio Roberto Saavedra
171822805/02/2023ArgentinaBuenos AiresParque Plaza Montero, Las FloresHernán Tolosa
171288228/01/2023ArgentinaBuenos AiresArroyo Centenario, Las FloresRicardo Juliano
148969405/11/2021ArgentinaBuenos AiresRuta 3, Las FloresDolores Fernandez
141987922/06/2021ArgentinaBuenos AiresRuta 30, cerca de la rotonda con Ruta 3, Las Flores35Adriana Bellotti
84126519/11/2018ArgentinaBuenos AiresLas FloresDiego Carus
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.