Data Zone
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 | Near Threatened | A2c+3c+4c |
| 2012 | Near Threatened | A2c+3c+4c |
| 2008 | Near Threatened | A2c; A3c; A4c |
| 2004 | Near Threatened | |
| 2000 | Lower Risk/Near Threatened | |
| 1994 | Lower Risk/Near Threatened | |
| 1988 | Near Threatened |
| Migratory status | not a migrant | Forest dependency | medium |
| Land-mass type |
continent |
Average mass | 11 g |
| Estimate | Data quality | |
|---|---|---|
| Extent of Occurrence (breeding/resident) | 601,000 km2 | medium |
| Severely fragmented? | no | - |
| Estimate | Data quality | Derivation | Year of estimate | |
|---|---|---|---|---|
| Population size | unknown | - | - | - |
| Population trend | decreasing | poor | suspected | 2017-2027 |
| 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 | 2.6 years | - | - | - |
| Number of subpopulations | 1 | - | - | - |
| Percentage of mature individuals in largest subpopulation | 100% | - | - | - |
Population justification: The global population size has not been quantified, but this species is described as common (Stotz et al. 1996, Remsen Jr. 2020, Silveira et al. 2023). Given the high number of records within its very large range (see eBird 2023), the population is unlikely to be small.
Trend justification: A population decline is suspected to be occurring, owing to the destruction of Araucaria woodlands.
The overall rate of tree cover loss within the range is 7-9% over ten years (Global Forest Watch 2023, using Hansen et al. [2013] data and methods disclosed therein). The species however thrives in Araucaria plantation forest and is able to tolerate habitat alteration as long as Araucaria trees are present (Cabanne et al. 2007, Silveira et al. 2023). Despite historical losses, Araucaria angustifolia currently remains abundant and widepsread (B. Phalan in litt. 2024). Population declines are therefore likely slow; they are here tentatively placed in the band 1-9% over ten years.
| Country/Territory | Presence | Origin | Resident | Breeding visitor | Non-breeding visitor | Passage migrant |
|---|---|---|---|---|---|---|
| Argentina | extant | native | yes | |||
| Brazil | extant | native | yes |
| Country/Territory | IBA Name |
|---|---|
| Argentina | Alta cuenca del arroyo Alegría |
| Argentina | Parque Provincial Cruce Caballero |
| Argentina | Parque Provincial Piñalito y alrededores |
| Argentina | Parque Provincial Uruzú y Reserva Forestal San Jorge |
| Argentina | Reserva de la Biósfera Yabotí |
| Argentina | San Antonio |
| Argentina | San Pedro |
| Brazil | São Francisco Xavier / Monte Verde |
| Brazil | Serra da Bocaina / Paraty / Angra dos Reis |
| Brazil | Serra da Mantiqueira |
| Habitat (level 1) | Habitat (level 2) | Importance | Occurrence |
|---|---|---|---|
| Artificial/Terrestrial | Plantations | major | resident |
| Artificial/Terrestrial | Rural Gardens | suitable | resident |
| Artificial/Terrestrial | Subtropical/Tropical Heavily Degraded Former Forest | suitable | resident |
| Forest | Subtropical/Tropical Moist Lowland | major | resident |
| Forest | Subtropical/Tropical Moist Montane | major | resident |
| Altitude | 220 - 2260 m | Occasional altitudinal limits |
| Threat (level 1) | Threat (level 2) | Impact and Stresses | |||||||
|---|---|---|---|---|---|---|---|---|---|
| Agriculture & aquaculture | Annual & perennial non-timber crops - Agro-industry farming | Timing | Scope | Severity | Impact | ||||
| Ongoing | Majority (50-90%) | Causing/Could cause fluctuations | Medium Impact: 6 | ||||||
|
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| Agriculture & aquaculture | Livestock farming & ranching - Agro-industry grazing, ranching or farming | Timing | Scope | Severity | Impact | ||||
| Ongoing | Majority (50-90%) | Causing/Could cause fluctuations | Medium Impact: 6 | ||||||
|
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Recommended citation
BirdLife International (2024) Species factsheet: Araucaria Tit-spinetail Leptasthenura setaria. Downloaded from
https://datazone.birdlife.org/species/factsheet/araucaria-tit-spinetail-leptasthenura-setaria 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.