Data Zone
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#.
| Critically Endangered | Endangered | Vulnerable |
|---|---|---|
| - | - | - |
| 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/Least Concern | |
| 1988 | Lower Risk/Least Concern |
| Migratory status | full migrant | Forest dependency | Does not normally occur in forest |
| Land mass type | Average mass | - |
| Estimate | Data quality | |
|---|---|---|
| Extent of Occurrence breeding/resident (km2) | 922,000 | medium |
| Extent of Occurrence non-breeding (km2) | 2,020,000 | medium |
| Number of locations | - | |
| Severely Fragmented | - |
| 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 | - | - | - |
Trend justification: The overall trend is suspected to be decreasing (Wetlands International 2006).
| Country/Territory | Occurrence status | Presence | Resident | Breeding | Non-breeding | Passage |
|---|---|---|---|---|---|---|
| Argentina | N | Extant | ||||
| Chile | N | Extant | ||||
| Falkland Islands (Malvinas) | U | Extant |
| Country/Territory | IBA Name |
|---|---|
| Argentina | Parque Nacional Lanín |
| Argentina | Parque Nacional Laguna Blanca |
| Argentina | Reserva Provincial Lagunas de Epulaufquen |
| Argentina | Parque Provincial Copahue-Caviahue |
| Argentina | Aluminé-Moquehue |
| Argentina | Cabo Vírgenes - Punta Dungeness |
| Argentina | Monte León |
| Argentina | La Angostura y Alto Río Chico |
| Argentina | Parque Nacional Perito Moreno y Reserva Provincial San Lorenzo |
| Argentina | Laguna Nimez y costa aledaña del Lago Argentino |
| Argentina | Parque Nacional Los Glaciares y adyacencias (Estancias El Sosiego, La Soledad y Anita) |
| Argentina | Estancia El Cóndor |
| Argentina | Reserva Costa Atlántica de Tierra del Fuego y zonas adyacentes |
| Argentina | Península Mitre |
| Argentina | Canal Beagle. Ushuaia a Islas Becasses |
| Argentina | Parque Nacional Tierra del Fuego y Reserva Provincial Corazón de la Isla |
| Chile | Bahía de Yaldad |
| Chile | Baker River Wetlands |
| 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 |
| Marine Coastal/Supratidal | Coastal Freshwater Lakes | suitable | breeding |
| Wetlands (inland) | Bogs, Marshes, Swamps, Fens, Peatlands | suitable | breeding |
| Wetlands (inland) | Permanent Freshwater Lakes (over 8ha) | suitable | breeding |
| Altitude | 0 - 1500 m | Occasional altitudinal limits |
Recommended citation
BirdLife International (2022) Species factsheet: Chloephaga poliocephala. Downloaded from
http://www.birdlife.org on 14/08/2022.
Recommended citation for factsheets for more than one species: BirdLife International (2022) IUCN Red List for birds. Downloaded from
http://www.birdlife.org on 14/08/2022.
