Taxonomic source(s)
del Hoyo, J., Collar, N.J., Christie, D.A., Elliott, A., Fishpool, L.D.C., Boesman, P. and Kirwan, G.M. 2016. HBW and BirdLife International Illustrated Checklist of the Birds of the World. Volume 2: Passerines. Lynx Edicions and BirdLife International, Barcelona, Spain and Cambridge, UK.
SACC. 2005 and updates. A classification of the bird species of South America. Available at: https://www.museum.lsu.edu/~Remsen/SACCBaseline.htm.
Critically Endangered | Endangered | Vulnerable |
---|---|---|
- | - | - |
Year | Category | Criteria |
---|---|---|
2024 | Least Concern | |
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 | not a migrant | Forest dependency | medium |
Land-mass type | Average mass | - |
Estimate | Data quality | |
---|---|---|
Extent of Occurrence (breeding/resident) | 1,510,000 km2 | medium |
Severely fragmented? | no | - |
Estimate | Data quality | Derivation | Year of estimate | |
---|---|---|---|---|
Population size | unknown | - | - | - |
Population trend | decreasing | - | suspected | - |
Generation length | 2.37 years | - | - | - |
Population justification: The global population size has not been quantified, but this species is described as 'common' (Stotz et al. 1996). This species is considered to have a medium dependency on forest habitat, and tree cover is estimated to have declined by 5.7% within its mapped range over the past 10 years (Global Forest Watch 2022, using Hansen et al. [2013] data and methods disclosed therein). Therefore, as a precautionary measure, it is tentatively suspected that this loss of cover may have led to a decline of between 1-19% in the species' population size over the same time frame.
Trend justification: .
Country/Territory | Presence | Origin | Resident | Breeding visitor | Non-breeding visitor | Passage migrant |
---|---|---|---|---|---|---|
Argentina | extant | native | yes | |||
Chile | extant | native | yes | |||
Falkland Islands (Malvinas) | extant | uncertain | yes |
Country/Territory | IBA Name |
---|---|
Argentina | Aluminé-Moquehue |
Argentina | Extensión Límite Este y Sur del Parque Nacional Nahuel Huapi |
Argentina | Lago La Plata - Fontana |
Argentina | Nahuel Huapi National Park and Reserve |
Argentina | Parque Nacional Lago Puelo - Parque Provincial Río Turbio |
Argentina | Parque Nacional Lanín |
Argentina | Parque Nacional Los Alerces y Laguna Terraplén |
Argentina | Parque Nacional Los Glaciares y adyacencias (Estancias El Sosiego, La Soledad y Anita) |
Argentina | Parque Nacional Perito Moreno y Reserva Provincial San Lorenzo |
Argentina | Parque Provincial Copahue-Caviahue |
Argentina | Reserva Provincial Lagunas de Epulaufquen |
Chile | Corredor Biológico Nevados de Chillán-Laguna del Laja |
Chile | Estero del Salto Valley |
Chile | Ibañez River Valley |
Chile | La Tapera |
Chile | Lago Colbún |
Chile | Lago Lanalhue |
Chile | Mancopulli |
Chile | Monumento Natural Contulmo |
Chile | Península Antonio Varas |
Chile | Putu |
Chile | Reserva Nacional Altos de Lircay |
Chile | Reserva Nacional Nonguén |
Chile | Salto Rayén |
Habitat (level 1) | Habitat (level 2) | Importance | Occurrence |
---|---|---|---|
Artificial/Terrestrial | Subtropical/Tropical Heavily Degraded Former Forest | suitable | resident |
Forest | Temperate | major | resident |
Grassland | Temperate | suitable | resident |
Shrubland | Subtropical/Tropical Dry | suitable | resident |
Altitude | 0 - 2200 m | Occasional altitudinal limits |
Recommended citation
BirdLife International (2024) Species factsheet: Thorn-tailed Rayadito Aphrastura spinicauda. Downloaded from
https://datazone.birdlife.org/species/factsheet/thorn-tailed-rayadito-aphrastura-spinicauda on 23/11/2024.
Recommended citation for factsheets for more than one species: BirdLife International (2024) IUCN Red List for birds. Downloaded from
https://datazone.birdlife.org/species/search on 23/11/2024.