• Summary
• Text account
• Data table and detailed info
• Distribution map
• Reference and further resources

Justification of Red List category
Although this species may have a small range, it is not believed to approach the thresholds for Vulnerable under the range size criterion (Extent of Occurrence <20,000 km² combined with a declining or fluctuating range size, habitat extent/quality, or population size and a small number of locations or severe fragmentation). The population trend appears to be stable, and hence the species does not approach the thresholds for Vulnerable under the population trend criterion (>30% decline over ten years or three generations). The population size has not been quantified, but it is not believed to approach the thresholds for Vulnerable under the population size criterion (<10,000 mature individuals with a continuing decline estimated to be >10% in ten years or three generations, or with a specified population structure). For these reasons the species is evaluated as Least Concern.

Population justification
The global population size has not been quantified, but the species is described as locally common (del Hoyo et al. 1999, Züchner and Boesman 2020).

Trend justification
The population trend has not been investigated. Slow and localised tree cover loss within the range (amounting to 3-5% over ten years; Global Forest Watch 2023, using Hansen et al. [2013] data and methods disclosed therein) is however unlikely to be driving population declines, given that the species inhabits forest edges and woodland and appears reasonably tolerant of converted habitats (per Züchner and Boesman 2020). Therefore, in the absence of evidence for any declines or substantial threats, the population is precautionarily suspected to be stable, though it might also be found to be increasing as small-scale logging activities contribute to the creation of suitable habitat.

The species is restricted to the Sierra Nevada de Santa Marta, Colombia.

It inhabits the borders of montane forests, woodland, shaded coffee plantations and occasionally páramo grassland (Züchner and Boesman 2020).

Text account compilers
Hermes, C.

Contributors
Butchart, S. & Ekstrom, J.

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Recommended citation
BirdLife International (2024) Species factsheet: Santa Marta Woodstar Chaetocercus astreans. Downloaded from https://datazone.birdlife.org/species/factsheet/santa-marta-woodstar-chaetocercus-astreans 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.