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). 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.
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 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. 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
BirdLife International (2021) Species factsheet: Phylloscopus reguloides. Downloaded from http://www.birdlife.org on 23/01/2021. Recommended citation for factsheets for more than one species: BirdLife International (2021) IUCN Red List for birds. Downloaded from http://www.birdlife.org on 23/01/2021.