• 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
-	C2a(i)	C2a(i); D1+2

Red List history

Year	Category	Criteria
2020	Endangered	C2a(i)
2016	Endangered	C2a(i)
2013	Endangered	C2a(i)
2012	Endangered	C2a(i)
2008	Endangered	C2a(i)
2006	Endangered
2004	Endangered
2000	Endangered
1996	Endangered
1994	Endangered
1988	Lower Risk/Least Concern

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

	Estimate	Data quality
Extent of Occurrence (breeding/resident)	11,700 km2	medium
Severely fragmented?	no	-

	Estimate	Data quality	Derivation	Year of estimate
Population size	250-999 mature individuals	poor	estimated	1999
Population trend	decreasing	poor	inferred	1987-2045
Generation length	7.75 years	-	-	-
Number of subpopulations	2-100	-	-	-
Percentage of mature individuals in largest subpopulation	1-89%	-	-	-

Population justification: The population is estimated to number 250-999 mature individuals, based on analysis of data in BirdLife International (2001). This equates to 375-1,499 individuals in total, rounded here to 350-1,500 individuals.

Trend justification: Although still considered fairly common in the 1970s, this species has declined rapidly since. There are post-1990 observations from just five localities, with a maximum count of 20 birds at Siburan in 1994. Rapid declines are inferred to be continuing, owing to the pressures facing remnant forests.

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

Country/Territory	IBA Name
Philippines	Iglit - Baco Mountains
Philippines	Lake Naujan
Philippines	Malpalon
Philippines	Mount Calavite
Philippines	Mount Halcon
Philippines	Mount Hitding
Philippines	Mount Siburan
Philippines	Puerto Galera

Habitat (level 1)	Habitat (level 2)	Importance	Occurrence
Forest	Subtropical/Tropical Moist Lowland	major	resident
Grassland	Subtropical/Tropical Dry	marginal	resident
Altitude	0 - 1000 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%)		Slow, Significant Declines		Low Impact: 5
		Stresses Ecosystem degradation, Ecosystem conversion
Biological resource use	Hunting & trapping terrestrial animals - Intentional use (species is the target)	Timing		Scope		Severity		Impact
		Ongoing		Minority (<50%)		Rapid Declines		Medium Impact: 6
		Stresses Species mortality
Biological resource use	Logging & wood harvesting - Unintentional effects: (subsistence/small scale) [harvest]	Timing		Scope		Severity		Impact
		Ongoing		Majority (50-90%)		Rapid Declines		Medium Impact: 7
		Stresses Ecosystem degradation
Climate change & severe weather	Storms & flooding	Timing		Scope		Severity		Impact
		Past, Unlikely to Return		Minority (<50%)		Rapid Declines		Past Impact
		Stresses Ecosystem degradation, Ecosystem conversion
Energy production & mining	Mining & quarrying	Timing		Scope		Severity		Impact
		Ongoing		Minority (<50%)		Slow, Significant Declines		Low Impact: 5
		Stresses Ecosystem degradation, Ecosystem conversion

Purpose	Scale
Food - human	subsistence, national

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Recommended citation
BirdLife International (2024) Species factsheet: Mindoro Hornbill Penelopides mindorensis. Downloaded from https://datazone.birdlife.org/species/factsheet/mindoro-hornbill-penelopides-mindorensis on 23/12/2024.
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 23/12/2024.