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 |
---|---|---|
2021 | Least Concern | |
2016 | Near Threatened | C1+2a(i) |
2012 | Near Threatened | C1+2a(i) |
2008 | Near Threatened | C1; C2a(i) |
2004 | Near Threatened | |
2000 | Lower Risk/Near Threatened | |
1996 | Vulnerable | |
1994 | Vulnerable | |
1988 | Lower Risk/Least Concern |
Migratory status | not a migrant | Forest dependency | low |
Land-mass type |
continent |
Average mass | - |
Estimate | Data quality | |
---|---|---|
Extent of Occurrence (breeding/resident) | 223,000 km2 | medium |
Severely fragmented? | no | - |
Estimate | Data quality | Derivation | Year of estimate | |
---|---|---|---|---|
Population size | 10000-19999 mature individuals | poor | suspected | 2020 |
Population trend | decreasing | poor | suspected | 2016-2025 |
Rate of change over the past 10 years/3 generations (longer of the two periods) | 1-9% | - | - | - |
Rate of change over the future 10 years/3 generations (longer of the two periods) | 1-9% | - | - | - |
Rate of change over the past & future 10 years/3 generations (longer of the two periods) | 1-9% | - | - | - |
Generation length | 2.69 years | - | - | - |
Number of subpopulations | 3-10 | - | - | - |
Percentage of mature individuals in largest subpopulation | 1-89% | - | - | - |
Population justification: The species is described as 'fairly common' (Stotz et al. 1996). The population has not been quantified, but based on observational records it is suspected to number 10,000-19,999 mature individuals, though this requires confirmation.
Even though the subpopulation structure has not been assessed, it is here assumed that the species forms at least three moderately large subpopulations (per eBird 2021).
Trend justification: Population trends have not been directly estimated. Even though the species tolerates habitat disturbance, the population is suspected to be in slow decline locally due to habitat loss and degradation (Remsen 2020). The overall rate of decline is unlikely to exceed 10% over ten years.
Country/Territory | Presence | Origin | Resident | Breeding visitor | Non-breeding visitor | Passage migrant |
---|---|---|---|---|---|---|
Argentina | extant | native | yes | |||
Bolivia | extant | native | yes |
Country/Territory | IBA Name |
---|---|
Argentina | Alto Calilegua |
Argentina | Caspala y Santa Ana |
Argentina | Cerro Negro de San Antonio |
Argentina | Cuesta del Obispo |
Argentina | Fincas Santiago y San Andrés |
Argentina | Parque Nacional Los Cardones |
Argentina | Quebrada del Toro |
Argentina | San Lucas |
Argentina | Santa Victoria, Cañani y Cayotal |
Argentina | Valle Colorado y Valle Grande |
Bolivia | Reserva Nacional de Flora y Fauna Tariquía |
Bolivia | Southern slopes of Tunari National Park (Vertiente Sur del Parque Nacional Tunari IBA) |
Habitat (level 1) | Habitat (level 2) | Importance | Occurrence |
---|---|---|---|
Artificial/Terrestrial | Arable Land | suitable | resident |
Artificial/Terrestrial | Pastureland | suitable | resident |
Forest | Subtropical/Tropical Moist Montane | suitable | resident |
Grassland | Subtropical/Tropical High Altitude | suitable | resident |
Shrubland | Subtropical/Tropical High Altitude | major | resident |
Altitude | 3000 - 4200 m | Occasional altitudinal limits | (min) 2500 m |
Threat (level 1) | Threat (level 2) | Impact and Stresses | |||||||
---|---|---|---|---|---|---|---|---|---|
Agriculture & aquaculture | Annual & perennial non-timber crops - Agro-industry farming | Timing | Scope | Severity | Impact | ||||
Ongoing | Minority (<50%) | Negligible declines | Low Impact: 4 | ||||||
|
|||||||||
Agriculture & aquaculture | Annual & perennial non-timber crops - Small-holder farming | Timing | Scope | Severity | Impact | ||||
Ongoing | Minority (<50%) | Negligible declines | Low Impact: 4 | ||||||
|
|||||||||
Agriculture & aquaculture | Livestock farming & ranching - Agro-industry grazing, ranching or farming | Timing | Scope | Severity | Impact | ||||
Ongoing | Minority (<50%) | Negligible declines | Low Impact: 4 | ||||||
|
|||||||||
Agriculture & aquaculture | Wood & pulp plantations - Small-holder plantations | Timing | Scope | Severity | Impact | ||||
Ongoing | Minority (<50%) | Negligible declines | Low Impact: 4 | ||||||
|
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Biological resource use | Logging & wood harvesting - Unintentional effects: (subsistence/small scale) [harvest] | Timing | Scope | Severity | Impact | ||||
Ongoing | Minority (<50%) | Negligible declines | Low Impact: 4 | ||||||
|
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Natural system modifications | Fire & fire suppression - Increase in fire frequency/intensity | Timing | Scope | Severity | Impact | ||||
Ongoing | Majority (50-90%) | Negligible declines | Low Impact: 5 | ||||||
|
Recommended citation
BirdLife International (2024) Species factsheet: Maquis Canastero Asthenes heterura. Downloaded from
https://datazone.birdlife.org/species/factsheet/maquis-canastero-asthenes-heterura on 04/12/2024.
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 04/12/2024.