email a friend
printable version
VU
Philippine Eagle-owl Bubo philippensis

IUCN Red List Criteria

Critically Endangered  
Endangered  
Vulnerable A2c+3c+4c;C2a(i) 

IUCN Red List history

Year Category
2013 Vulnerable
2012 Vulnerable
2008 Vulnerable
2004 Vulnerable
2000 Vulnerable
1996 Endangered
1994 Endangered
1988 Near Threatened

Species attributes

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

Distribution

  Estimate Data quality
Extent of Occurrence breeding/resident (km2) 224,000 medium
Number of locations 11-100 -
Fragmentation -

Population & trend

  Estimate Data quality Derivation Year of estimate
No. of mature individuals 2500-9999 poor Estimated 1999
Population trend Decreasing poor -
Number of subpopulations 2-100 - - -
Largest subpopulation 251-1000 - - -
Generation length (yrs) 11.6 - - -
Population justification: The population size is preliminarily estimated to fall into the band 2,500-9,999 mature individuals. This equates to 3,750-14,999 individuals, rounded here to 3,500-15,000 individuals.
Trend justification: Owing to this species's requirement for lowland forest it is suspected to have declined rapidly as forests have been widely cleared within its range. However, it can persist in some modified habitats; thus further research is required to compare population densities in different habitats, and to calculate more accurate rates of deforestation.

Country/Territory distribution

Country/Territory Occurrence status Presence Breeding Non-breeding Passage
Philippines Native Extant Yes    

Important Bird Areas where this species has triggered the IBA criteria

Country/Territory IBA Name IBA link
Philippines Angat Watershed Forest Reserve site factsheet
Philippines Anonang-Lobi Range site factsheet
Philippines Bataan Natural Park and Subic Bay Forest Reserve site factsheet
Philippines Bulusan Volcano Natural Park site factsheet
Philippines Catanduanes Watershed Forest Reserve site factsheet
Philippines Kalbario-Patapat National Park site factsheet
Philippines Mount Apo Natural Park site factsheet
Philippines Mount Dingalan site factsheet
Philippines Mount Hamiguitan Range Wildlife Sanctuary site factsheet
Philippines Mount Hilong-hilong site factsheet
Philippines Mount Kaluayan - Mount Kinabalian Complex site factsheet
Philippines Mount Kitanglad Range Natural Park site factsheet
Philippines Mount Makiling Forest Reserve site factsheet
Philippines Mount Nacolod site factsheet
Philippines Mount Pulag National Park site factsheet
Philippines Mounts Banahaw-San Cristobal National Park site factsheet
Philippines Mounts Palay-Palay-Mataas Na Gulod National Park site factsheet
Philippines Northern Sierra Madre Natural Park site factsheet
Philippines Peñablanca Protected Landscape and Seascape site factsheet
Philippines Quezon National Park site factsheet
Philippines Rajah Sikatuna Protected Landscape site factsheet
Philippines University of the Philippines Land Grants (Pakil and Real) site factsheet

Habitats & altitude

Habitat (level 1) Habitat (level 2) Importance Occurrence
Forest Subtropical/Tropical Moist Lowland major resident
Altitude 0 - 650 m Occasional altitudinal limits  

Threats & impact

Threat (level 1) Threat (level 2) Impact and Stresses
Agriculture & aquaculture Livestock farming & ranching / Agro-industry grazing, ranching or farming Timing Scope Severity Impact
Ongoing Whole (>90%) Rapid Declines High Impact: 8
Stresses
Ecosystem degradation, Ecosystem conversion
Biological resource use Hunting & trapping terrestrial animals / Intentional use (species is the target) Timing Scope Severity Impact
Ongoing Unknown Unknown Unknown
Stresses
Species mortality
Biological resource use Logging & wood harvesting / Unintentional effects: (subsistence/small scale) [harvest] Timing Scope Severity Impact
Ongoing Whole (>90%) Rapid Declines High Impact: 8
Stresses
Ecosystem degradation
Climate change & severe weather Storms & flooding Timing Scope Severity Impact
Past, Likely to Return Whole (>90%) Negligible declines Past Impact
Stresses
Ecosystem degradation
Energy production & mining Mining & quarrying Timing Scope Severity Impact
Ongoing Minority (<50%) Slow, Significant Decline Low Impact: 5
Stresses
Ecosystem degradation, Ecosystem conversion
Geological events Avalanches/landslides Timing Scope Severity Impact
Past, Likely to Return Minority (<50%) Rapid Declines Past Impact
Stresses
Ecosystem degradation, Ecosystem conversion

Utilisation

Purpose Primary form used Life stage used Source Scale Level Timing
Food (human) Whole Adults and juveniles Wild Subsistence, National Non-trivial Recent
Sport Whole Adults and juveniles Wild Subsistence, National Non-trivial Recent

Recommended citation
BirdLife International (2014) Species factsheet: Bubo philippensis. Downloaded from http://www.birdlife.org on 25/04/2014. Recommended citation for factsheets for more than one species: BirdLife International (2014) IUCN Red List for birds. Downloaded from http://www.birdlife.org on 25/04/2014.

This information is based upon, and updates, the information published in BirdLife International (2000) Threatened birds of the world. Barcelona and Cambridge, UK: Lynx Edicions and BirdLife International, BirdLife International (2004) Threatened birds of the world 2004 CD-ROM and BirdLife International (2008) Threatened birds of the world 2008 CD-ROM. These sources provide the information for species accounts for the birds on the IUCN Red List.

To provide new information to update this factsheet or to correct any errors, please email BirdLife

To contribute to discussions on the evaluation of the IUCN Red List status of Globally Threatened Birds, please visit BirdLife's Globally Threatened Bird Forums.

Key facts
Current IUCN Red List category Vulnerable
Family Strigidae (Owls)
Species name author (Kaup, 1851)
Population size 2500-9999 mature individuals
Population trend Decreasing
Distribution size (breeding/resident) 224,000 km2
Country endemic? Yes
Links to further information
- Summary information on this species