Rosy-billed Pochard

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Rosy-billed Pochard in South America

Scientific name: Netta peposaca

Family: Anatidae

Spanish name: Pato picazo

Migration: Partial Neotropical migrant

Population estimate: > 1,000,000

Trend: Increasing

Ramsar Criterion 6 (1% level): > 10,000

IUCN Conservation status: Not known to have unfavourable conservation status

 

Distribution and abundances

Distributes in southern South America, from southern Patagonia and Tierra del Fuego to central Chile, Paraguay and southern Brazil. Highest abundances recorded within the Pampas and in north-east Argentina, Uruguay and southern Brazil (link to Abundances map). Sites reaching the 1% threshold (Ramsar Convention Criterion No. 6) are: Cañadas Tres Árboles and Morteros in Argentina, Estero de Pelotas in Uruguay and Banhado do Pontal, Granja Sao Francisco and Lagoa Mirim in Rio Grande do Sul, Brazil.

 

Migration and seasonality

Breeds in Patagonia and central Argentina (from Córdoba, Entre Ríos, Santa Fe and Buenos Aires provinces to Chubut) and Chile. The Patagonia population migrates northwards to northern Argentina, Uruguay, Paraguay, east of Bolivia and southern Brazil during the winter. Some birds wintering in north-central Argentina (Santiago del Estero) also move south-east reaching southern Brazil in August / September (two birds banded in Santiago del Estero province in Argentina, were recovered in Rio Grande do Sul, Brazil). Migration occurs mainly along the central and eastern Argentina routes (link to Seasonality map).

 

Habitat

Lagoons and open waters, fresh-water marshes, flooded grasslands, streams, stubble and rice-fields. Also in lakes of the Andes.

 

Habits and interactions with human activities

Gregarious, in flocks of thousand birds during the non-breeding season. Considered a rice pest and game species in Argentina, Chile and southern Brazil. Common in urban lagoons.

 

Bibliography

Blanco, D.E., B. López-Lanús, R.A. Dias, A. Azpiroz & F. Rilla. 2006. Uso de arroceras por chorlos y playeros migratorios en el sur de América del Sur. Implicancias de conservación y manejo. Wetlands International. Buenos Aires, Argentina.

Canevari, M., P. Canevari, G.R. Carrizo, G. Harris, J. Rodríguez Mata & R. Straneck. 1991. Nueva Guía de las Aves Argentinas. Fundación Acindar. Santiago de Chile. Tome I: 200 pp. and Tome II: 182 pp.

del Hoyo, J., A. Elliott & J. Sargatal (eds). 1992. Handbook of the Birds of the World. Vol. 1. Ostrich to Ducks. Lynx Ed., Barcelona.

Fjeldsa, J. & N. Krabbe. 1990. Birds of the High Andes. Zoological Museum, Univ. of Copenhagen, Denmark.

Menegheti, J.O. & J.C. Dotto. 2002. Regulaciones de caza en Rio Grande do Sul y resultados de los monitoreos de Anátidos: acuerdos y controversias; in Blanco, D.E., J. Beltrán & V. de la Balze (eds.): Primer Taller sobre la Caza de Aves Acuáticas: 59-66. Wetlands International.

Menegheti, J.O., F. Rilla & M.I. Burger. 1990. Waterfowl in South America: their status, trends and distribution. In Matthews, G.V.T. (ed.): Managing Waterfowl Populations: 97-103. Proc. IWRB Symposium, Astrakhan 1989. IWRB Publ. 12. Slimbridge, UK.

Narosky, T. & D. Yzurieta. 1987. Guía para la identificación de las aves de Argentina y Uruguay. Asoc. Ornitológica del Plata. Vázquez Manzini Ed. Buenos Aires. 345 pp.

Olrog, C.C. 1963. El anillado de aves en la Argentina: 1961-1965 – Tercer informe. Neotropica (suplemento) 9 (29): 1-8.

Olrog, C.C. 1963. Lista y distribución de las aves argentinas. Opera Lilloana IX, Tucumán.

Olrog, C.C. 1965. El anillado de aves en la Argentina: 1961-1964 – Cuarto informe. Hornero 10: 202-208.

Olrog, C.C. 1968. El anillado de aves en la Argentina: 1964-1966 – Quinto informe. Neotropica 14 (43): 17-22.

Olrog, C.C. 1968. Las aves sudamericanas: Una guía de campo. Tomo I. Universidad Nacional de Tucumán, Fundación - Instituto Miguel Lillo, Tucumán, Argentina.

Rodríguez Mata, J., F. Erize & M. Rumboll. 2006. Guía de Campo Collins – Aves de Sudamérica: No Passeriformes. Harper Collins Ltd.

Wetlands International. 2006. Waterbird Population Estimates – Fourth Edition. Wetlands International, Wageningen, The Netherlands.

 

 

 

Authors: Daniel E. Blanco, Román Baigún & Bernabé López-Lanús

Data compiler: Darío Unterköfler

Photographer: Roberto Güller

Recommended citation: Blanco D.E., R. Baigún & B. López-Lanús. 2008. Rosy-billed Pochard in South America factsheet. Wetlands International for the Global Avian Influenza Network for Surveillance / WCS / USAID.

 

 

Click on the link to download the factsheet in pdf format: Rosy-billed Pochard

 

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