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 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.
Locustella chengi is endemic as a breeder to China, found only in Sichuan, Guizhou, Hubei, Hunan and Shaanxi, and potentially in Jiangxi. It is presumed to be a migrant, but the wintering grounds are as yet unknown.
Found on slopes as well as on flat ground, in open habitats with dense low vegetation of herbs and/or ferns, often in association with trees, such as in forest clearings and in sparse secondary forest. The species has also been oinside tea plantations.
Text account compilers
BirdLife International (2023) Species factsheet: Locustella chengi. Downloaded from http://datazone.birdlife.org/species/factsheet/sichuan-grasshopper-warbler-locustella-chengi on 29/05/2023. Recommended citation for factsheets for more than one species: BirdLife International (2023) IUCN Red List for birds. Downloaded from http://datazone.birdlife.org on 29/05/2023.