LC
Ruddy-headed Goose Chloephaga rubidiceps



Taxonomy

Taxonomic source(s)
del Hoyo, J., Collar, N.J., Christie, D.A., Elliott, A. and Fishpool, L.D.C. 2014. HBW and BirdLife International Illustrated Checklist of the Birds of the World. Lynx Edicions BirdLife International, Barcelona, Spain and Cambridge, UK.
del Hoyo, J.; Collar, N. J.; Christie, D. A.; Elliott, A.; Fishpool, L. D. C. 2014. HBW and BirdLife International Illustrated Checklist of the Birds of the World. Barcelona, Spain and Cambridge UK: Lynx Edicions and BirdLife International.
SACC. 2006. A classification of the bird species of South America. Available at: #http://www.museum.lsu.edu/~Remsen/SACCBaseline.html#.
SACC. 2006. A classification of the bird species of South America. Available at: #http://www.museum.lsu.edu/~Remsen/SACCBaseline.htm#.

IUCN Red list criteria met and history
Red List criteria met
Critically Endangered Endangered Vulnerable
- - -

Red List history
Year Category Criteria
2016 Least Concern
2012 Least Concern
2009 Least Concern
2008 Least Concern
2004 Least Concern
2000 Lower Risk/Least Concern
1994 Lower Risk/Near Threatened
1988 Threatened
Species attributes

Migratory status full migrant Forest dependency Does not normally occur in forest
Land mass type Average mass -
Distribution

Estimate Data quality
Extent of Occurrence breeding/resident (km2) 223,000 medium
Extent of Occurrence non-breeding (km2) 951,000 medium
Number of locations -
Severely Fragmented -
Population and trend
Value Data quality Derivation Year of estimate
No. of mature individuals poor estimated 2009
Population trend Decreasing suspected -
Decline (3 years/1 generation past) - - -
Decline (5 years/1 generation past) - - -
Decline (10 years/1 generation past) - - -
Decline (10 years/3 generation future) - - -
Decline (10 years/3 generation past and future) - - -
Number of subpopulations - - -
Percentage in largest subpopulation - - -
Generation length (yrs) 8.5 - - -

Population justification: The species has a large global population estimated to be 43,000-82,000 individuals (Wetlands International 2006). The population on mainland South America has decreased considerably, with simultaneous censuses in southern Chile and Argentina recording 312 individuals in 1998 (Y. A. Vilina in litt. 1998). Although abundant on Tierra del Fuego in the 1950s, a census in the 1973 breeding season yielded only 30 birds (del Hoyo et al. 1992). However, it is fairly common in the Falklands with 14,000-27,000 pairs estimated in surveys between 1983 and 1992 (Woods and Woods 1997).

Trend justification: The overall trend is decreasing, although some populations may be stable (Wetlands International 2006).


Country/territory distribution
Country/Territory Occurrence status Presence Resident Breeding Non-breeding Passage
Argentina N Extant Yes
Chile N Extant Yes
Falkland Islands (Malvinas) N Extant Yes

Important Bird and Biodiversity Areas (IBA)
Country/Territory IBA Name
Argentina Reserva de Uso Múltiple San Blas y Refugio de Vida silvestre Complementario
Argentina Arroyo Cristiano Muerto
Argentina Parque Nacional Laguna Blanca
Argentina Villa marítima El Cóndor
Argentina Sistema Península de Valdés
Argentina Cabo Vírgenes
Argentina Estuario del Río Gallegos
Argentina Estuario del Río Coyle
Argentina Monumento Natural Bosques Petrificados y Estancia El Cuadro
Falkland Islands (Malvinas) Lively Island Group
Argentina El Zurdo
Falkland Islands (Malvinas) Bleaker Island Group
Argentina Estancia El Cóndor
Falkland Islands (Malvinas) Jason Islands Group
Argentina Reserva Costa Atlántica de Tierra del Fuego y zonas adyacentes
Argentina Península Mitre
Argentina Isla de los Estados, Islas de Año Nuevo e islotes adyacentes
Argentina Parque Nacional Tierra del Fuego y Reserva Provincial Corazón de la Isla
Argentina Islas Malvinas
Falkland Islands (Malvinas) Keppel Island
Falkland Islands (Malvinas) Lively Island Group
Falkland Islands (Malvinas) New Island Group
Falkland Islands (Malvinas) Pebble Island Group
Falkland Islands (Malvinas) Saunders Island
Falkland Islands (Malvinas) Sea Lion Islands Group
Falkland Islands (Malvinas) Speedwell Island Group
Falkland Islands (Malvinas) West Point Island Group
Falkland Islands (Malvinas) Bull Point, East Falkland
Falkland Islands (Malvinas) Hope Harbour, West Falkland
Falkland Islands (Malvinas) Seal Bay, East Falkland
Falkland Islands (Malvinas) Volunteer Point, East Falkland
Falkland Islands (Malvinas) Bertha's Beach, East Falkland
Chile Desembocadura del Río San Juan
Chile Estancia San Gregorio
Chile Norte de Isla Grande de Tierra del Fuego
Chile Marisma Buque Quemado
Chile Bahía Lomas
Chile Monumento Natural Laguna de los Cisnes
Chile Ibañez River Valley
Chile Laguna San Rafael National Park
Chile Parque Nacional Pali Aike

Habitats & altitude
Habitat (level 1) Habitat (level 2) Importance Occurrence
Artificial/Terrestrial Arable Land suitable non-breeding
Artificial/Terrestrial Pastureland suitable non-breeding
Grassland Temperate major breeding
Altitude   Occasional altitudinal limits  

Threats & impact
Threat (level 1) Threat (level 2) Impact and Stresses
Climate change & severe weather Habitat shifting & alteration Timing Scope Severity Impact
Future Whole (>90%) Unknown Unknown
Stresses
Indirect ecosystem effects, Ecosystem degradation

Recommended citation
BirdLife International (2021) Species factsheet: Chloephaga rubidiceps. Downloaded from http://www.birdlife.org on 29/11/2021. Recommended citation for factsheets for more than one species: BirdLife International (2021) IUCN Red List for birds. Downloaded from http://www.birdlife.org on 29/11/2021.