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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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Records from Calamuchita

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: 683794
 
Calamuchita
Córdoba
Argentina
04/19/2026
Facundo Carretero



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Species vocalizations

Last vocalizations published



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Species videos

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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
246280519/04/2026ArgentinaCórdobaReserva aguada de los pajaros, CalamuchitaFacundo Carretero
212865404/08/2024ArgentinaCórdobaReserva Ambiental Aguada de los Pájaros, Calamuchita95Bautista Villanueva
210301901/04/2024ArgentinaCórdobaReserva Ambiental Aguada de los Pájaros, Calamuchita7Sabrina Godoy
213266917/02/2024ArgentinaCórdobaDesembocadura de rio santa rosa, Calamuchita2Dario Juan Wendeler
213254804/02/2024ArgentinaCórdobaDesembocadura de rio santa rosa, Calamuchita6Dario Juan Wendeler
195738520/01/2024ArgentinaCórdobaLaguna cantera, Calamuchita2Dario Juan Wendeler
195726920/01/2024ArgentinaCórdobaReserva aguada de los pajaros, Calamuchita10Dario Juan Wendeler
205406412/09/2023ArgentinaCórdobaCostanera del Embalse, Calamuchita30Juan Bautista Cerminato Granadé
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 24/09/2026.