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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 Córdoba

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: 670017
  Adult

Almafuerte
Córdoba
Argentina
01/12/2026
Walter Bustamante
Foto
Photography ID: 669824
  Immature

Embalse de Río Tercero
Córdoba
Argentina
01/10/2026
Daniel Oscar Serra
Foto
Photography ID: 665882
♂ ♀
  Adult

Villa Carlos Paz
Córdoba
Argentina
01/04/2026
Tramannoni Ariel
Foto
Photography ID: 665643
♂ ♀
  Adult

Villa del Dique
Córdoba
Argentina
05/18/2023
Gustavo Abel Larracoechea
Foto
Photography ID: 664940
  Adult

Obispo Trejo
Córdoba
Argentina
12/13/2025
Federico J. Villegas
Foto
Photography ID: 634746
  Adult

Nono
Córdoba
Argentina
02/08/2025
Jorge Schlemmer
Foto
Photography ID: 623341
♂ ♀
 
Dique Piedras Moras
Córdoba
Argentina
02/22/2025
Daniel Oscar Serra
Foto
Photography ID: 622479
♂ ♀
  Adult

San Ignacio
Córdoba
Argentina
02/06/2025
Héctor Schreiber
Foto
Photography ID: 622151
  Adult

Alcira Gigena
Córdoba
Argentina
01/25/2025
Pablo Eguia
Foto
Photography ID: 620804
  Adult

Villa Rumipal
Córdoba
Argentina
01/12/2025
Franco Montaño Herrero



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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
244090201/03/2026ArgentinaCórdobaLaguna Blaizot, Pozo del Molle5Hugo Caverzasi
243711721/02/2026ArgentinaCórdobaPlanta tratamiento, Las Varillas1Hugo Caverzasi
243962117/02/2026ArgentinaCórdobaNono--Cola del Dique La Viña, San AlbertoPablo Eguia
243307514/02/2026ArgentinaCórdobaPuente Las Mojarras Dpto Gral San Martin, Las MojarrasHugo Caverzasi
243956213/02/2026ArgentinaCórdobaNono--Cola del Dique La Viña, San AlbertoPablo Eguia
243071808/02/2026ArgentinaCórdobaJose Manuel Amaya, Nono4Hugo Caverzasi
242360922/01/2026ArgentinaCórdobaCamping Laguna del Plata, Bañados del Río Dulce24Facundo Carretero
242623718/01/2026ArgentinaCórdobaBarrio Mirador del Lago, Bialet MasseAdrian Braidotti
242369812/01/2026ArgentinaCórdobaLago Piedras moras, AlmafuerteWalter Bustamante
242291710/01/2026ArgentinaCórdobaVilla del Dique, Embalse de Río TerceroDaniel Oscar Serra
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 12/04/2026.