Data Zone
Justification of Red List category
This species has a very 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). The population trend appears to be increasing, 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 reported to be locally fairly common in northern parts of its range though often scarce towards the south (Flegg and Madge 1995).
Trend justification
The population is suspected to be increasing due to a recent range expansion to the south and west.
Text account compilers
Wheatley, H., Butchart, S., Hermes, C., Ekstrom, J.
Recommended citation
BirdLife International (2024) Species factsheet: Brown Gerygone Gerygone mouki. Downloaded from
https://datazone.birdlife.org/species/factsheet/brown-gerygone-gerygone-mouki on 22/12/2024.
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 22/12/2024.