NT
Malay Whistling-thrush Myophonus robinsoni



Taxonomy

Taxonomic note

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.
Sibley, C. G.; Monroe, B. L. 1990. Distribution and taxonomy of birds of the world. Yale University Press, New Haven, USA.

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

Red List history
Year Category Criteria
2016 Near Threatened B1ab(i,ii,iii,v);C2a(ii)
2012 Near Threatened B1ab(i,ii,iii,v);C2a(ii)
2011 Near Threatened B1a+b(i,ii,iii); C2a(ii)
2009 Least Concern
2008 Least Concern
2005 Least Concern
2004 Vulnerable
2000 Vulnerable
1994 Lower Risk/Near Threatened
1988 Near Threatened
Species attributes

Migratory status not a migrant Forest dependency High
Land mass type Land-mass type - continent
Average mass -
Extent of occurrence (EOO)

Estimate Data quality
Extent of Occurrence breeding/resident (km2) 8,800 medium
Number of locations 11-100 -
Fragmentation -
Population and trend
Estimate Data quality Derivation Year of estimate
No. of mature individuals 2500-9999 poor suspected 2005
Population trend Decreasing poor suspected -
Decline (3 years/1 generation past) - - -
Decline (5 years/1 generation past) - - -
Decline (10 years/1 generation past) - - -
Decline (10 years/3 generation future) - - -
Decline (10 years/3 generation past and future) - - -
Number of subpopulations - - -
Largest subpopulations - - -
Generation length (yrs) 4.3 - - -

Population justification: The population size has not been formally estimated, but recent surveys by Bakewell et al. (2010a) found no evidence against Collar's (2005) presumption that there are fewer than 10,000 mature individuals. It is placed in the band 2,500-9,999 mature individuals, equating to 3,750-14,999 individuals in total, rounded here to 3,500-15,000 individuals.

Trend justification: The population is suspected to be in decline owing to ongoing habitat destruction and degradation (Yeap et al. 2007, Bakewell et al. 2010a,b).


Country/territory distribution
Country/Territory Occurrence status Presence Resident Breeding Non-breeding Passage
Malaysia N Extant Yes

Important Bird and Biodiversity Areas (IBA)
Country/Territory IBA Name
Malaysia Central Titiwangsa Range

Habitats & altitude
Habitat (level 1) Habitat (level 2) Importance Occurrence
Forest Subtropical/Tropical Moist Lowland major resident
Forest Subtropical/Tropical Moist Montane major resident
Wetlands (inland) Permanent Rivers/Streams/Creeks (includes waterfalls) suitable resident
Altitude 750 - 1750 m Occasional altitudinal limits (min) 480 m

Threats & impact
Threat (level 1) Threat (level 2) Impact and Stresses
Agriculture & aquaculture Annual & perennial non-timber crops Timing Scope Severity Impact
Ongoing Minority (<50%) Slow, Significant Declines
Stresses
Ecosystem degradation, Ecosystem conversion
Climate change & severe weather Habitat shifting & alteration Timing Scope Severity Impact
Future Whole (>90%) Unknown
Stresses
Indirect ecosystem effects, Ecosystem degradation
Pollution Agricultural & forestry effluents Timing Scope Severity Impact
Ongoing Minority (<50%) Slow, Significant Declines
Stresses
Ecosystem degradation
Pollution Agricultural & forestry effluents Timing Scope Severity Impact
Ongoing Majority (50-90%) Slow, Significant Declines
Stresses
Ecosystem degradation
Residential & commercial development Tourism & recreation areas Timing Scope Severity Impact
Ongoing Majority (50-90%) Slow, Significant Declines
Stresses
Ecosystem degradation, Ecosystem conversion
Transportation & service corridors Roads & railroads Timing Scope Severity Impact
Past, Likely to Return Majority (50-90%) Rapid Declines
Stresses
Ecosystem degradation, Ecosystem conversion

Recommended citation
BirdLife International (2019) Species factsheet: Myophonus robinsoni. Downloaded from http://www.birdlife.org on 21/10/2019. Recommended citation for factsheets for more than one species: BirdLife International (2019) IUCN Red List for birds. Downloaded from http://www.birdlife.org on 21/10/2019.