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). Despite the fact that the population trend appears to be decreasing, the decline is not believed to be sufficiently rapid to 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 moderately common and widespread (del Hoyo et al. 2005).
The population is suspected to be in decline owing to ongoing habitat destruction and fragmentation.
This species is endemic Borneo, Indonesia and Malaysia.
This species is found in forest from sea level to 2,400 m altitude, occasionally to 2,700 m on Mount Kinabalu (Clement and Hathway 2000, Collar 2004). It is most often found along gullies and streams (Collar 2004).
This species is threatened by ongoing habitat destruction and fragmentation.
Text account compilers
BirdLife International (2023) Species factsheet: Myophonus borneensis. Downloaded from http://datazone.birdlife.org/species/factsheet/bornean-whistling-thrush-myophonus-borneensis on 29/09/2023. Recommended citation for factsheets for more than one species: BirdLife International (2023) IUCN Red List for birds. Downloaded from http://datazone.birdlife.org on 29/09/2023.