Current view: Data table and detailed info
Taxonomic note
Formerly placed in genus Lobiophasis, but recent genetic work found no evidence that Lophura as currently constituted is polyphyletic (Randi et al. 2001). The same work identified five clades within Lophura, one of which is formed by the present species alone (Randi et al. 2001). Monotypic.
Taxonomic source(s)
del Hoyo, J., Collar, N.J., Christie, D.A., Elliott, A. and Fishpool, L.D.C. 2014. HBW and BirdLife International Illustrated Checklist of the Birds of the World. Volume 1: Non-passerines. Lynx Edicions BirdLife International, Barcelona, Spain and Cambridge, UK.
IUCN Red List criteria met and history
Red List criteria met
Red List history
Migratory status |
not a migrant |
Forest dependency |
high |
Land-mass type |
shelf island
|
Average mass |
- |
Population justification: Suspected of numbering 1,000-10,000 individuals by McGowan and Garson (1995), although this apparently based on little more than conjecture and it is unclear whether the population does in fact number below 10,000 mature individuals given the potentially vast area of forest (totalling more than 260,000 km2) within its range. Consequently, the population is here regarded as unknown.
Trend justification: Suspected of undergoing continuing declines of 30-49% every three three generations (25.5 years; Bird et al. 2020) although data are few. As this species principally occurs in hill forests, it is less at risk from habitat loss than lowland Sundaic Phasianids. Remote sensing data (Global Forest Watch 2022, using data from Hansen et al. [2013] and methods disclosed therein) suggest that forest loss in this species' range over the past three generations has been equivalent to 10-15% (depending on the thresholds set). Similarly, Savini et al. (2021) estimated using computational analysis than the area of suitable habitat for this species fell from 178,015 km2 to 166,167 km2 between 2000 and 2018, equivalent to c. 9-10% over three generations. However, hunting pressure on this species is suspected to be strong. Available habitat is becoming increasingly fragmented (Savini et al. 2021), increasing accessibility of interior forest to hunters. In Indonesia, Savini et al. (2018) estimated the population decline caused by hunting only to be as high as 42% over a previous, lower three-generation period of 15 years. However, their method did not account for reproduction and hunting pressure is suspected of being lower in Malaysian Borneo. While there are no direct data that can be used to estimate a rate of decline, it is suspected that a decline in excess of the threshold of 30% has been occurring over the past three generations and this rate is not likely to diminish in the near future. There is a need for more field data that can be used to estimate the actual rate of decline.
Country/territory distribution
Important Bird and Biodiversity Areas (IBA)
Recommended citation
BirdLife International (2024) Species factsheet: Bulwer's Pheasant Lophura bulweri. Downloaded from
https://datazone.birdlife.org/species/factsheet/bulwers-pheasant-lophura-bulweri on 23/12/2024.
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 23/12/2024.