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.
The global population size has not been quantified, but the species is described as locally uncommon in the north of its range to fairly common in the south (Harris and Franklin 2000).
This population is estimated to be increasing following evidence of a range expansion in the south of its distribution from the 1970s to the 1990s at least (Harris and Franklin 2000).
Text account compilers
Ekstrom, J., Butchart, S.
BirdLife International (2019) Species factsheet: Tchagra tchagra. Downloaded from http://www.birdlife.org on 22/03/2019. Recommended citation for factsheets for more than one species: BirdLife International (2019) IUCN Red List for birds. Downloaded from http://www.birdlife.org on 22/03/2019.