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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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🌿 EcoRegistros Magazine - Related Articles


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





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 Detail of places sorted by number of records








Page 1
Record IDDateExact timeCountryProvince / departmentPlaceFilmedPhotographedRecorded vocalObservedHeardWounded or deadNumber of individualsUser or BibliographyDetail
38845931/12/2015ArgentinaBuenos AiresGuaminí2Diego Oscar
38289231/12/2015ArgentinaCiudad Autónoma de Buenos AiresReserva Ecológica Costanera Sur (RECS)Nicolas Olejnik
62601830/12/2015ArgentinaCórdobaDalmacio Vélez SarfieldFederico Galfione
38153628/12/2015ArgentinaEntre RíosPerdicesPablo Meoniz
38320827/12/2015ArgentinaCiudad Autónoma de Buenos AiresReserva Ecológica Costanera Sur (RECS)Gonzalo Diaz
38131127/12/2015ArgentinaEntre RíosOrilla del Río Gualeguay, GualeguayNicolas Chimento
38070427/12/2015ArgentinaSanta FeVenado TuertoJorge La Grotteria
38024326/12/2015ArgentinaCórdobaEl Rocío, Las Varillas2Hugo Caverzasi
38389124/12/2015ArgentinaBuenos AiresCarlos CasaresWalter Liriel Gómez Umpierrez
38788520/12/2015ArgentinaEntre RíosLos Charruas2Federico Carlos Stempels Hernandez
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.