Data Zone
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 given recent taxonomic splits. The species is described as common to fairly common, though easily overlooked (Brewer et al. 2020).
Trend justification
The species is susceptible to habitat loss and fragmentation, and thus the population is suspected to be in decline (Brewer et al. 2020). Tree cover loss within the range is low (4% over ten years; Global Forest Watch 2022, 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. Declines may however vary locally, in line with differing trends in habitat loss (e.g. Pollock et al. 2022).
This species occurs from southern Mexico through Central America south to western Brazil and central Bolivia.
The species inhabits the understorey 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.
Recommended citation
BirdLife International (2024) Species factsheet: Tawny-crowned Greenlet Tunchiornis ochraceiceps. Downloaded from
https://datazone.birdlife.org/species/factsheet/tawny-crowned-greenlet-tunchiornis-ochraceiceps 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.