LC
Austral Canastero Asthenes anthoides



Taxonomy

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.

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

Red List history
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
1996 Vulnerable
1994 Vulnerable
1988 Threatened
Species attributes

Migratory status full migrant Forest dependency low
Land-mass type continent
Average mass -
Range

Estimate Data quality
Extent of Occurrence (breeding/resident) 720,000 km2 medium
Extent of Occurrence (non-breeding) 1,200,000 km2 medium
Severely fragmented? no -
Population
Estimate Data quality Derivation Year of estimate
Population size unknown - - -
Population trend stable - suspected -
Generation length 2.78 years - - -

Population justification: The global population size has not been quantified, but this species is described as 'uncommon' (Stotz et al. 1996). The population was once thought to be declining owing to overgrazing of native grasslands in Patagonia and Tierra del Fuego. However, there is no evidence that it occupied these grasslands and its current preferred habitat of temperate shrubland is not threatened and the population is believed to be stable throughout its range (Vuilleumier 1997).

Trend justification: The population was once thought to be declining owing to overgrazing of native grasslands in Patagonia and Tierra del Fuego. However, there is no evidence that it occupied these grasslands and its current preferred habitat of temperate shrubland is not threatened and the population is believed to be stable throughout its range (Vuilleumier. 1997).


Country/territory distribution
Country/Territory Presence Origin Resident Breeding visitor Non-breeding visitor Passage migrant
Argentina extant native yes
Chile extant native yes

Important Bird and Biodiversity Areas (IBA)
Country/Territory IBA Name

Habitats & altitude
Habitat (level 1) Habitat (level 2) Importance Occurrence
Forest Subtropical/Tropical Dry suitable breeding
Forest Subtropical/Tropical Dry suitable non-breeding
Grassland Temperate major non-breeding
Grassland Temperate major breeding
Shrubland Subtropical/Tropical Dry suitable non-breeding
Shrubland Subtropical/Tropical Dry suitable breeding
Altitude 0 - 1500 m Occasional altitudinal limits (max) 1650 m

Recommended citation
BirdLife International (2024) Species factsheet: Austral Canastero Asthenes anthoides. Downloaded from https://datazone.birdlife.org/species/factsheet/austral-canastero-asthenes-anthoides on 22/11/2024.
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 22/11/2024.