Justification of Red List Category
Despite having a small range this species is not thought 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 is considered stable and so 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.
While potentially scarce (Collar 2016), population density estimates for congeners (see Collar 2016) and assuming it inhabits only a proportion of its habitat, would still lead to this species having a population size of >>10,000 mature individuals, placed here in the range of 20,000-49,999 mature individuals.
Anthropogenic habitat alteration has occurred within this region (BirdLife International 2016), but it not certain whether this has affected this species's montane habitat. Therefore, the population is tentatively considered stable.
Text account compilers
Butchart, S., Ekstrom, J. & Westrip, J.
BirdLife International (2022) Species factsheet: Dessonornis mbuluensis. Downloaded from http://www.birdlife.org on 19/05/2022. Recommended citation for factsheets for more than one species: BirdLife International (2022) IUCN Red List for birds. Downloaded from http://www.birdlife.org on 19/05/2022.