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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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Geographic distribution


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Species photographs

Last published photographs

Foto
Photography ID: 665882
♂ ♀
  Adult

Villa Carlos Paz
Córdoba
Argentina
01/04/2026
Tramannoni Ariel
Foto
Photography ID: 651723
♂ ♀
  Adult

Roldán
Santa Fe
Argentina
09/10/2025
Tramannoni Ariel
Foto
Photography ID: 626623
♂ ♀
  Adult

Bustinza
Santa Fe
Argentina
03/16/2025
Tramannoni Ariel
Foto
Photography ID: 581281
♂ ♀
  Adult

Carcarañá
Santa Fe
Argentina
04/21/2024
Tramannoni Ariel
Foto
Photography ID: 505323
♂ ♀
  Adult

Colón
Entre Ríos
Argentina
08/26/2022
Tramannoni Ariel
Foto
Photography ID: 488118
♂ ♀
  Adult

Correa
Santa Fe
Argentina
04/02/2022
Tramannoni Ariel
Foto
Photography ID: 460285
♂ ♀
  Adult

Cañada de Gómez
Santa Fe
Argentina
09/02/2021
Tramannoni Ariel
Foto
Photography ID: 226490
  Adult

Miramar
Córdoba
Argentina
10/15/2017
Tramannoni Ariel



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Species vocalizations

Last vocalizations published



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Species videos

Last filmings published




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Species reports



 Detail of places sorted by number of records








Page 1
Record IDDateExact timeCountryProvince / departmentPlaceFilmedPhotographedRecorded vocalObservedHeardWounded or deadNumber of individualsUser or BibliographyDetail
241079204/01/2026ArgentinaCórdobaClub nautico cordoba, Villa Carlos PazTramannoni Ariel
235642110/09/2025ArgentinaSanta FeTierra de Sueños 3, Roldán, Santa Fe, Argentina, RoldánTramannoni Ariel
226280716/03/2025ArgentinaSanta FeZona rural, BustinzaTramannoni Ariel
202491521/04/2024ArgentinaSanta FeCarcarañáTramannoni Ariel
163104726/08/2022ArgentinaEntre RíosReserva Natural Rio de los Pájaros, ColónTramannoni Ariel
156559602/04/2022ArgentinaSanta FeBajada de Lanchas, CorreaTramannoni Ariel
145751702/09/2021ArgentinaSanta FeCañada de GómezTramannoni Ariel
63758715/10/2017ArgentinaCórdobaHotel casino ansenuza, MiramarTramannoni Ariel
Page 1

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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 28/09/2026.