Current view: Data table and detailed info
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
Red List history
Migratory status |
not a migrant |
Forest dependency |
medium |
Land-mass type |
continent
|
Average mass |
- |
Population justification: The species is described as abundant and occurring at a high density (Benham et al. 2011, Lloyd 2020). Density estimates observed in 2003-2005 averaged 16 individuals/km2 in Polylepis forest at three sites, ranging from 10 individuals/km2 in medium-sized patches to 25 individuals/km2 in large patches (Lloyd 2008). Another study in 2009/2010 found higher densities of 34 individuals/km2 forest at one site (Benham et al. 2011). Precautionarily assuming that only 10% of the mapped range is occupied to account for the species' habitat specialism (i.e., 1,300 km2), the global population is estimated at 13,000-44,200 individuals. This is roughly equivalent to 8,500-30,000 mature individuals.
Trend justification: The population trend has not been investigated. The species is strongly dependent on dense, mature Polylepis woodland, which is under pressure from encroachment for timber collection and livestock grazing (Fjeldså and Kessler 1996, Jameson and Ramsay 2007, Lloyd 2020). Even though the total loss of Polylepis patches is overall negligible, canopy density is declining and tall trees are disappearing slowly (Jameson and Ramsay 2007); hence, the species' preferred habitat is disproportionately affected by degradation. On this basis, population declines are suspected. The rate of decline is not known, but is likely slow as the species continues to be observed frequently (see eBird 2023).
Country/territory distribution
Important Bird and Biodiversity Areas (IBA)
Recommended citation
BirdLife International (2024) Species factsheet: White-browed Tit-spinetail Leptasthenura xenothorax. Downloaded from
https://datazone.birdlife.org/species/factsheet/white-browed-tit-spinetail-leptasthenura-xenothorax on 23/12/2024.
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 23/12/2024.