• Summary
• Text account
• Data table and detailed info
• Distribution map
• Reference and further resources

Taxonomic note

Coracornis sanghirensis (del Hoyo and Collar 2016) was previously listed as Colluricincla sanghirensis.

 

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.
Rozendaal, F. G.; Lambert, F. R. 1999. The taxomonic and conservation status of Pinarolestes sanghirensis Oustalet 1881. Forktail 15: 1-13.

Red List criteria met

Critically Endangered	Endangered	Vulnerable
B1ab(ii,iii,v); C2a(i,ii)	B1ab(ii,iii,v)+2ab(ii,iii,v); C2a(i,ii); D	B1ab(ii,iii,v)+2ab(ii,iii,v); C2a(i,ii); D1+2

Red List history

Year	Category	Criteria
2021	Critically Endangered	B1ab(ii,iii,v); C2a(i,ii)
2018	Critically Endangered	B1ab(ii,iii,v); C2a(i,ii)
2016	Critically Endangered	B1ab(ii,iii,v)+2ab(ii,iii,v); C2a(i,ii)
2015	Critically Endangered	B1ab(ii,iii,v)+2ab(ii,iii,v); C2a(i,ii)
2012	Critically Endangered	B1ab(ii,iii,v)+2ab(ii,iii,v);C2a(i,ii)
2010	Critically Endangered	B1a+b(ii,iii,v); B2a+b(ii,iii,v); C2a(ii)
2009	Critically Endangered	B1a+b(ii,iii,v); B2a+b(ii,iii,v); C2a(ii)
2008	Critically Endangered
2004	Critically Endangered
2000	Critically Endangered
1994	Not Recognised
1988	Not Recognised

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

	Estimate	Data quality
Extent of Occurrence (breeding/resident)	8 km2	medium
Area of Occupancy (breeding/resident)	12 km2	medium
Number of locations	1	-
Severely fragmented?	no	-

	Estimate	Data quality	Derivation	Year of estimate
Population size	50-249 mature individuals	medium	estimated	2009
Population trend	decreasing	poor	inferred	-
Generation length	3.5 years	-	-	-
Number of subpopulations	1	-	-	-
Percentage of mature individuals in largest subpopulation	100%	-	-	-

Population justification: The population size is likely to be extremely low (possibly fewer than 100 birds), given the tiny area of remaining habitat. An initial population estimate of 56-205 individuals (BirdLife Indonesia 2007) has not increased despite more recent surveys accessing a larger potential area. The most recent population estimate is between 92-255 individuals in total (Burung Indonesia 2009) and so is placed in the band 50-249 mature individuals. There is the potential for the population to be even lower than this, as these estimates are based on density estimates created from very few presence points (Burung Indonesia 2009).

Trend justification: This species is assumed to be declining owing to on-going forest loss within its restricted range. In 2009, reports suggested that numbers of this species were in serious decline owing to forest clearance (Sykes 2009). The species was not detected in 2015 at the most northwesterly and most southerly points where it was present in 2009, where habitat has been further degraded and from which the range is inferred to be continuing to decline (Martin 2018).   

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

Country/Territory	IBA Name
Indonesia	Gunung Sahendaruman

Habitat (level 1)	Habitat (level 2)	Importance	Occurrence
Forest	Subtropical/Tropical Moist Lowland	major	resident
Altitude	600 - 1040 m	Occasional altitudinal limits	(min) 575 m

Threat (level 1)	Threat (level 2)	Impact and Stresses
Agriculture & aquaculture	Annual & perennial non-timber crops - Shifting agriculture	Timing		Scope		Severity		Impact
		Ongoing		Majority (50-90%)		Slow, Significant Declines		Medium Impact: 6
		Stresses Ecosystem degradation, Ecosystem conversion
Agriculture & aquaculture	Wood & pulp plantations - Scale Unknown/Unrecorded	Timing		Scope		Severity		Impact
		Ongoing		Majority (50-90%)		Rapid Declines		Medium Impact: 7
		Stresses Ecosystem degradation, Ecosystem conversion
Biological resource use	Logging & wood harvesting - Unintentional effects: (subsistence/small scale) [harvest]	Timing		Scope		Severity		Impact
		Ongoing		Minority (<50%)		Slow, Significant Declines		Low Impact: 5
		Stresses Ecosystem degradation
Climate change & severe weather	Habitat shifting & alteration	Timing		Scope		Severity		Impact
		Future		Whole (>90%)		Unknown		Unknown
		Stresses Indirect ecosystem effects, Ecosystem degradation

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Recommended citation
BirdLife International (2024) Species factsheet: Sangihe Whistler Coracornis sanghirensis. Downloaded from https://datazone.birdlife.org/species/factsheet/sangihe-whistler-coracornis-sanghirensis 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.