Red Shoveler in South America

Red Shoveler in South America
Scientific name: Anas platalea
Family: Anatidae
Spanish name: Pato cuchara
Migration: Partial Neotropical migrant
Population estimate: 25,000-100,000
Trend: Stable
Ramsar Criterion 6 (1% level): 1,000
IUCN Conservation status: Not known
to have unfavourable conservation status
Distribution and abundances
Distributes in southern South America, from Tierra del
Fuego and Malvinas / Falkland Islands to south-eastern
Brazil, Paraguay, Bolivia and southern Peru. Highest
abundances recorded in central Chile and within inland
Patagonia (moulting and staging sites are lakes of inland
Santa Cruz province, in Argentina) and the Pampas of
Argentina (see Abundances map). Sites reaching the 1%
threshold (Ramsar Convention Criterion No. 6), between
others are: Tranque San Rafael and Batuco, in central
Chile, and Laguna Los Huaicos, Lagunas cloacales near
Trelew city (Chubut province), Laguna Las Tunas, Laguna
Mar Chiquita and Bañados del Río Dulce, Laguna La
Brava, Laguna Melincué, Laguna La Salada and Laguna
Miramar in Argentina.
Migration and seasonality
Southern population migrates northward in austral autumn / winter to northern
Argentina, Paraguay, Uruguay and as far as southeastern Brazil and southern Peru.
Northward migration occurs along the western, central and eastern Argentina routes.
Some populations spend the whole year in Patagonia (see Seasonality map).
Habitat
Shallow brackish and fresh-water lakes, lagoons and marshes with dense vegetation.
Also in flooded grasslands, estuaries and tidal creeks, streams and sewer lagoons. Less
common in marine coasts.
Habits and interactions with human activities
Gregarious, sometimes in groups of hundreds during the non-breeding season and in
mixed flocks with other duck species. In Patagonia recorded in big numbers in urban
lagoons and sewer lagoons. High grazing of sheep and goat has reduced the breeding
success of Patagonian populations.
Bibliography
Albrieu, C., S. Imberti & S. Ferrari. 2004. Las aves de la Patagonia Sur - El Estuario del Río
Gallegos y zonas aledañas. Ed. Univ. Nac. Patagonia Austral, Río Gallegos. 204 pp.
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.
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. Lista y distribución de las aves argentinas. Opera Lilloana IX, Tucumán.
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.
Woods, R.W. & Anne Woods. 1997. Atlas of Breeding birds of the Falkland Islands. Anthony
Nelson, England. 190 pp.
Authors: Daniel E. Blanco, Román Baigún & Bernabé López-Lanús
Data compiler: Ignacio Roesler
Photographer: Roberto Güller
Recommended citation: Blanco D.E., R. Baigún & B. López-Lanús. 2008. Red Shoveler in South
America factsheet. Wetlands International for the Global Avian Influenza Network for Surveillance /
WCS / USAID.
This factsheet and maps were made possible through support provided by the Office of
Health, Infectious Disease and Nutrition, Bureau for Global Health, U.S. Agency for
International Development and Wildlife Conservation Society, under the terms of
Leader Award No.LAG-A-00-99-00047-00, Cooperative Agreement: GHS-A-00-0600005. The opinions expressed herein are those of the author(s) and do not
necessarily reflect the views of the U.S. Agency for International Development or
Wildlife Conservation Society.