• 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. and Fishpool, L.D.C. 2014. HBW and BirdLife International Illustrated Checklist of the Birds of the World. Volume 1: Non-passerines. Lynx Edicions BirdLife International, Barcelona, Spain and Cambridge, UK.

Red List criteria met

Critically Endangered	Endangered	Vulnerable
-	-	-

Red List history

Year	Category	Criteria
2023	Least Concern
2016	Near Threatened	B1ab(iii);C2a(ii)
2012	Near Threatened	B1ab(iii);C2a(ii)
2008	Near Threatened	B1a+b(iii); C2a(ii)
2004	Near Threatened
2000	Lower Risk/Near Threatened
1996	Vulnerable
1994	Vulnerable
1988	Lower Risk/Least Concern

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

	Estimate	Data quality
Extent of Occurrence (breeding/resident)	27,000 km2	medium
Severely fragmented?	no	-

	Estimate	Data quality	Derivation	Year of estimate
Population size	10000-19999 mature individuals	poor	suspected	2008
Population trend	decreasing	-	suspected	2016-2026
Rate of change over the past 10 years/3 generations (longer of the two periods)	1-9%	-	-	-
Rate of change over the future 10 years/3 generations (longer of the two periods)	5-12%	-	-	-
Rate of change over the past & future 10 years/3 generations (longer of the two periods)	5-12%	-	-	-
Generation length	3.39 years	-	-	-
Number of subpopulations	1-2	-	-	-

Population justification: This species is described as generally uncommon, but recent records from St Paul Subterranean National Park suggest it may be locally common (Allen 2020). Given that it has a relatively small range of not more than 27,000 km² and occurs predominantly in lowland forest, the population is unlikely to exceed the band 10,000-19,999 mature individuals. However, this is a preliminary estimate of poor data quality that requires clarification.

Trend justification: The only identified threat to this species is habitat loss and degradation. In the ten years to 2022, forest cover on Palawan declined by c.9% (Global Forest Watch 2023, based on data from Hansen et al. [2013] and methods disclosed therein). The rate of forest loss appears to be increasing - the reduction in tree cover over the next three generations is suspected to be c.12%, based on the rate of loss over the last five years (Global Forest Watch 2023, based on data from Hansen et al. [2013] and methods disclosed therein). However, the species is reportedly tolerant of some habitat degradation, occurring in secondary growth and mixed cultivation (Allen 2020), therefore it is suspected to be declining at a rate somewhat slower than the rate of habitat loss.

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

Country/Territory	IBA Name
Philippines	Balabac Island
Philippines	Mount Mantalingahan
Philippines	Puerto Princesa Subterranean River Natural Park / Cleopatra's Needle
Philippines	Victoria and Anepahan Ranges

Habitat (level 1)	Habitat (level 2)	Importance	Occurrence
Artificial/Terrestrial	Plantations	suitable	resident
Artificial/Terrestrial	Subtropical/Tropical Heavily Degraded Former Forest	suitable	resident
Forest	Subtropical/Tropical Moist Lowland	major	resident
Altitude	10 - 290 m	Occasional altitudinal limits

Threat (level 1)	Threat (level 2)	Impact and Stresses
Agriculture & aquaculture	Annual & perennial non-timber crops - Agro-industry farming	Timing		Scope		Severity		Impact
		Ongoing		Majority (50-90%)		Negligible declines		Low Impact: 5
		Stresses Ecosystem degradation, Ecosystem conversion
Agriculture & aquaculture	Annual & perennial non-timber crops - Small-holder farming	Timing		Scope		Severity		Impact
		Ongoing		Minority (<50%)		Negligible declines		Low Impact: 4
		Stresses Ecosystem degradation, Ecosystem conversion
Biological resource use	Logging & wood harvesting - Unintentional effects: (large scale) [harvest]	Timing		Scope		Severity		Impact
		Ongoing		Majority (50-90%)		Negligible declines		Low Impact: 5
		Stresses Ecosystem degradation, Ecosystem conversion
Biological resource use	Logging & wood harvesting - Unintentional effects: (subsistence/small scale) [harvest]	Timing		Scope		Severity		Impact
		Ongoing		Minority (<50%)		Negligible declines		Low Impact: 4
		Stresses Ecosystem degradation, Ecosystem conversion

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Recommended citation
BirdLife International (2024) Species factsheet: Palawan Scops-owl Otus fuliginosus. Downloaded from https://datazone.birdlife.org/species/factsheet/palawan-scops-owl-otus-fuliginosus 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.