Crested Partridge Rollulus rouloul

Family: Phasianidae (Pheasants, Partridges, Turkeys, Grouse)

Authority: (Scopoli, 1786)

Red List Category

Criteria: A2cd+3cd+4cd

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Justification of Red List category
Tree cover loss through conversion of forest to agriculture (particularly for oil palm plantations) is estimated at 17% over the past three generations, and with further impacts from degradation the the species is now suspected to be undergoing a moderately rapid to rapid population reduction over the past three generations. The majority of the loss has taken place within the lowlands, within the preferred elevational range of the species. In addition, trapping pressure on the species is thought to be high and it is a desirable bird in trade, with exploitation suspected to result in an additional 25% reduction over three generations. Overall, the population is suspected to have undergone a rapid recent reduction at a rate exceeding 30% over three generations, hence is assessed as Vulnerable. This reduction will continue unless there is a significant reduction in both the rate of habitat conversion and of wild bird trapping within the range of the species, or until the majority of the population becomes restricted to more secure protected areas. 

Population size: unknown

Population trend: decreasing

Extent of occurrence (breeding/resident): 3,742,300 km2

Country endemic: no

Land-mass type - continent
Land-mass type - shelf island
Realm - Indomalayan
IUCN Ecosystem -- Terrestrial biome

Recommended citation
BirdLife International (2023) Species factsheet: Rollulus rouloul. Downloaded from on 03/12/2023.
Recommended citation for factsheets for more than one species: BirdLife International (2023) IUCN Red List for birds. Downloaded from on 03/12/2023.