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 is very large, and hence does not 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.
Population justification
The global population is suspected to number 50,000-499,999 mature individuals (Partners in Flight 2022). The species is described as 'uncommon and patchily distributed' (Stotz et al. 1996).
Trend justification
The population trend has not been investigated, but the only threat known to this species is forest loss. Within the range, tree cover is lost at a rate of 6% over three generations (Global Forest Watch 2022, using Hansen et al. [2013] data and methods disclosed therein). Given the species' dependence on forest, population declines may exceed the rate of tree cover loss. Tentatively, population declines are here placed in the band 1-9% over three generations.
Text account compilers
Hermes, C.
Contributors
Butchart, S., Ekstrom, J. & Palmer-Newton, A.
Recommended citation
BirdLife International (2024) Species factsheet: Sharpbill Oxyruncus cristatus. Downloaded from
https://datazone.birdlife.org/species/factsheet/sharpbill-oxyruncus-cristatus on 23/11/2024.
Recommended citation for factsheets for more than one species: BirdLife International (2024) IUCN Red List for birds. Downloaded from
https://datazone.birdlife.org/species/search on 23/11/2024.