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). 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.
The population is suspected to be in decline owing to ongoing habitat destruction and predation by introduced species.
Stiphrornis xanthogaster occurs from south-east Cameroon and north-east Gabon, eastwards to north-central Democratic Republic of Congo and southern Uganda. Subspecies S. x. sanghensis is currently only known from the Dzanga-Sangha Rainforest Reserve (3,359 km2) in the Sangha-Mbaèré Prefecture in south-western Central African Republic, where it is common on both sides of the Sangha River. Its range may prove to extend into eastern Cameroon, northern Congo and north-western Democratic Republic of Congo (Beresford and Cracraft 1999). It was only collected in 1996 and 1998, and further studies are required to confirm its conservation requirements and distribution.
This species inhabits swamp-forest with dense Marantanceae understorey, and dryland forest, except where there is pure Marantaceae cover (del Hoyo et al. 2006).
This species is threatened by ongoing habitat destruction and predation by introduced species.
Text account compilers
Khwaja, N. & Temple, H.
BirdLife International (2022) Species factsheet: Stiphrornis xanthogaster. Downloaded from http://www.birdlife.org on 29/11/2022. Recommended citation for factsheets for more than one species: BirdLife International (2022) IUCN Red List for birds. Downloaded from http://www.birdlife.org on 29/11/2022.