NT
Buru Thrush Geokichla dumasi



Taxonomy

Taxonomic note

Geokichla dumasi (del Hoyo and Collar 2016) was previously listed as Zoothera dumasi.

Taxonomic source(s)
del Hoyo, J., Collar, N.J., Christie, D.A., Elliott, A., Fishpool, L.D.C., Boesman, P. and Kirwan, G.M. 2016. HBW and BirdLife International Illustrated Checklist of the Birds of the World. Volume 2: Passerines. Lynx Edicions and BirdLife International, Barcelona, Spain and Cambridge, UK.

IUCN Red List criteria met and history
Red List criteria met
Critically Endangered Endangered Vulnerable
- - -

Red List history
Year Category Criteria
2017 Near Threatened B1ab(v)+2ab(v)
2016 Near Threatened B1ab(v)
2012 Near Threatened B1ab(v)
2008 Near Threatened C2aii
2006 Near Threatened
2004 Not Recognised
2000 Not Recognised
1996 Data Deficient
1994 Not Recognised
1988 Not Recognised
Species attributes

Migratory status not a migrant Forest dependency high
Land-mass type Average mass -
Range

Estimate Data quality
Extent of Occurrence (breeding/resident) 9,100 km2 medium
Area of Occupancy (breeding/resident) 1,500 km2
Severely fragmented? no -
Population
Estimate Data quality Derivation Year of estimate
Population size 20000-49999 mature individuals medium estimated 2006
Population trend decreasing - suspected -
Generation length 3 years - - -
Number of subpopulations 1 - - -
Percentage of mature individuals in largest subpopulation 100% - - -

Population justification: Population estimate = 20 individuals/km2 x 1,700 km2 (20% of EOO) = 34,400 individuals (density range from up to lower quartile of two Asian congeners in BirdLife Bird Population Density Spreadsheet). Perhaps best currently placed in population band of 20,000-49,999 individuals.

Trend justification: Although data are very poor, the species may be declining owing to the bird trade.


Country/territory distribution
Country/Territory Presence Origin Resident Breeding visitor Non-breeding visitor Passage migrant
Indonesia extant native yes

Important Bird and Biodiversity Areas (IBA)
Country/Territory IBA Name

Habitats & altitude
Habitat (level 1) Habitat (level 2) Importance Occurrence
Forest Subtropical/Tropical Moist Montane major resident
Altitude 800 - 1500 m Occasional altitudinal limits  

Threats & impact
Threat (level 1) Threat (level 2) Impact and Stresses
Biological resource use Hunting & trapping terrestrial animals - Intentional use (species is the target) Timing Scope Severity Impact
Ongoing Minority (<50%) Slow, Significant Declines Low Impact: 5
Stresses
Species mortality

Utilisation
Purpose Scale
Pets/display animals, horticulture subsistence, national

Recommended citation
BirdLife International (2024) Species factsheet: Buru Thrush Geokichla dumasi. Downloaded from https://datazone.birdlife.org/species/factsheet/buru-thrush-geokichla-dumasi on 24/12/2024.
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 24/12/2024.