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

Justification of Red List category
This species has an extremely large range, and hence does not 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). Despite the fact that the population trend appears to be decreasing, the decline is not believed to be sufficiently rapid to 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 is unknown due to recent taxonomic splits. The species is described as fairly common, but easily overlooked (Brewer et al. 2020).

Trend justification
The species is susceptible to habitat loss and thus the population is suspected to be in decline (Brewer et al. 2020). Tree cover loss within the range is low (3% over ten years; Global Forest Watch 2021, using Hansen et al. [2013] data and methods disclosed therein). Assuming that population declines are roughly equivalent to the rate of tree cover loss, declines are likely to be slow, not exceeding 10% over ten years.

The species occurs in the understory of humid forest (Brewer et al. 2020).

The species is threatened by the loss and fragmentation of its habitat for small-scale agricultural conversion (Brewer et al. 2020).

Text account compilers
Hermes, C.

Contributors
Butchart, S., Ekstrom, J. & Symes, A.

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Recommended citation
BirdLife International (2024) Species factsheet: Olive-crowned Greenlet Tunchiornis luteifrons. Downloaded from https://datazone.birdlife.org/species/factsheet/olive-crowned-greenlet-tunchiornis-luteifrons 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.