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

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.

Red List criteria met

Critically Endangered	Endangered	Vulnerable
-	-	-

Red List history

Year	Category	Criteria
2022	Least Concern
2016	Endangered	B1ab(ii,iii,iv,v)
2012	Endangered	B1ab(ii,iii,iv,v)
2008	Endangered	B1a+b(ii,iii,iv,v)
2004	Endangered
2000	Endangered
1996	Vulnerable
1994	Vulnerable
1988	Threatened

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

	Estimate	Data quality
Extent of Occurrence (breeding/resident)	15,300 km2	medium
Severely fragmented?	no	-

	Estimate	Data quality	Derivation	Year of estimate
Population size	unknown	-	-	-
Population trend	stable	poor	suspected	-
Generation length	3.01 years	-	-	-

Population justification: The population size is unknown, in part due to its exact geographic limits remaining unknown. It is usually described as locally common (Lambaihang et al. 2003) or uncommon (Eaton et al. 2021). Given the total area of forest it is currently suspected to occupy (c.2,000 km²), it is possible that the population may number fewer than 10,000 mature individuals if the species proves to occur at very low density; however, it is considered more likely to exceed this, especially given it probably occurs in additional areas of forest further west. The subpopulation structure is wholly unknown: although it is monotypic, the population is disjunct and multiple subpopulations are suspected.

Trend justification: The principal threat, forest loss, is currently occurring at a negligible rate equivalent to <0.5% over the last 10 years (Global Forest Watch [2021], using data from Hansen et al. [2013] and methods disclosed herein) and only along the peripheries of the species' elevational limit. This rate is considered too low to cause a decline in mature individuals. In the absence of other threats, the population is therefore suspected to be stable.

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

Country/Territory	IBA Name
Indonesia	Bogani Nani Wartabone
Indonesia	Gunung Simbalang

Habitat (level 1)	Habitat (level 2)	Importance	Occurrence
Forest	Subtropical/Tropical Moist Montane	major	resident
Altitude	1300 - 2400 m	Occasional altitudinal limits

Threat (level 1)	Threat (level 2)	Impact and Stresses
Agriculture & aquaculture	Annual & perennial non-timber crops - Shifting agriculture	Timing		Scope		Severity		Impact
		Ongoing		Minority (<50%)		No decline		Low Impact: 4
		Stresses Ecosystem degradation, Ecosystem conversion
Biological resource use	Logging & wood harvesting - Unintentional effects: (subsistence/small scale) [harvest]	Timing		Scope		Severity		Impact
		Ongoing		Minority (<50%)		No decline		Low Impact: 4
		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: Matinan Warbling-flycatcher Eumyias sanfordi. Downloaded from https://datazone.birdlife.org/species/factsheet/matinan-warbling-flycatcher-eumyias-sanfordi on 22/11/2024.
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 22/11/2024.