Justification of Red List category
This species has an extremely large range in which it can be very common, hence the population size is suspected to be large. In the absence of substantial threats the population trend is suspected to be stable. Accordingly the species does not approach threatened thresholds and is assessed as Least Concern.
Population justification
The global population size has not been quantified, but the species is described as common and widespread in most of its range (del Hoyo et al. 2006). The population is suspected to be stable in the absence of evidence for any declines or substantial threats. This species' population in Laos is considered to be of high importance globally, with trends in this country (low to negligible) similar to those found in the species' previous global assessment (Timmins et al. 2024). This species is considered to have a medium dependency on forest habitat, which is estimated to be declining at a slow rate (Global Forest Watch 2024).
Trend justification
The population is suspected to be stable in the absence of evidence for any declines or substantial threats.
This species has a large range, extending from north-west India to southern Viet Nam. It inhabits broadleaved evergreen forest up to 2,550 m, usually breeding above 1,500 m.
The species inhabits broadleaved evergreen forest up to 2,550 m, usually breeding above 1,500 m. The breeding season is February to June, when a clutch of 4-5 eggs is laid in a ball-shaped nest built in a recess in a bank, tree-trunk or stump (Robson 2000).
Text account compilers
Martin, R., Rutherford, C.A.
Recommended citation
BirdLife International (2024) Species factsheet: Blyth's Leaf-warbler Phylloscopus reguloides. Downloaded from
https://datazone.birdlife.org/species/factsheet/blyths-leaf-warbler-phylloscopus-reguloides on 18/12/2024.
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 18/12/2024.