Taxonomic note
Ninox scutulata, N. japonica, N. randi and N. obscura (del Hoyo and Collar 2014) were previously lumped as N. scutulata following Sibley and Monroe (1990, 1993).
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. Lynx Edicions BirdLife International, Barcelona, Spain and Cambridge, UK.
del Hoyo, J.; Collar, N. J.; Christie, D. A.; Elliott, A.; Fishpool, L. D. C. 2014. HBW and BirdLife International Illustrated Checklist of the Birds of the World. Barcelona, Spain and Cambridge UK: Lynx Edicions and BirdLife International.
Critically Endangered | Endangered | Vulnerable |
---|---|---|
- | - | - |
Year | Category | Criteria |
---|---|---|
2016 | Near Threatened | A2c+3c+4c |
2014 | Near Threatened | A2c+3c+4c |
Migratory status | not a migrant | Forest dependency | medium |
Land mass type | Average mass | 191 g |
Estimate | Data quality | |
---|---|---|
Extent of Occurrence breeding/resident (km2) | 643,000 | |
Number of locations | - | |
Severely Fragmented | - |
Value | Data quality | Derivation | Year of estimate | |
---|---|---|---|---|
No. of mature individuals | unknown | not applicable | not applicable | 0 |
Population trend | decreasing | suspected | - | |
Decline (3 years/1 generation past) | - | - | - | |
Decline (5 years/1 generation past) | - | - | - | |
Decline (10 years/1 generation past) | - | - | - | |
Decline (10 years/3 generation future) | 25-29 | - | - | - |
Decline (10 years/3 generation past and future) | 25-29 | - | - | - |
Number of subpopulations | - | - | - | |
Percentage in largest subpopulation | - | - | - | |
Generation length (yrs) | 4.1 | - | - | - |
Population justification: The global population size has not been quantified, but the species is reported to be common to uncommon (del Hoyo et al. 1999).
Trend justification: Based on on-going forest loss and degradation within the range of the species it is suspected to be in moderately rapid population decline (approaching 30% over three generations [c.12 years]).
Country/Territory | Presence | Origin | Resident | Breeding | Non-breeding | Passage |
---|---|---|---|---|---|---|
Philippines | extant | native | yes |
Country/Territory | IBA Name |
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Habitat (level 1) | Habitat (level 2) | Importance | Occurrence |
---|---|---|---|
Artificial/Terrestrial | Arable Land | suitable | non-breeding |
Artificial/Terrestrial | Pastureland | suitable | non-breeding |
Artificial/Terrestrial | Plantations | suitable | non-breeding |
Artificial/Terrestrial | Rural Gardens | suitable | breeding |
Artificial/Terrestrial | Urban Areas | suitable | non-breeding |
Forest | Subtropical/Tropical Moist Lowland | suitable | breeding |
Forest | Subtropical/Tropical Swamp | suitable | breeding |
Shrubland | Subtropical/Tropical Dry | suitable | breeding |
Shrubland | Subtropical/Tropical Moist | suitable | non-breeding |
Altitude | 0 - 1500 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 | Minority (<50%) | Slow, Significant Declines | Low Impact: 5 | ||||||
|
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Agriculture & aquaculture | Annual & perennial non-timber crops - Small-holder farming | Timing | Scope | Severity | Impact | ||||
Ongoing | Majority (50-90%) | Slow, Significant Declines | Medium Impact: 6 | ||||||
|
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Biological resource use | Logging & wood harvesting - Unintentional effects: (large scale) [harvest] | Timing | Scope | Severity | Impact | ||||
Ongoing | Majority (50-90%) | Slow, Significant Declines | Medium Impact: 6 | ||||||
|
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Biological resource use | Logging & wood harvesting - Unintentional effects: (subsistence/small scale) [harvest] | Timing | Scope | Severity | Impact | ||||
Ongoing | Majority (50-90%) | Slow, Significant Declines | Medium Impact: 6 | ||||||
|
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Energy production & mining | Mining & quarrying | Timing | Scope | Severity | Impact | ||||
Ongoing | Minority (<50%) | Slow, Significant Declines | Low Impact: 5 | ||||||
|
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Residential & commercial development | Commercial & industrial areas | Timing | Scope | Severity | Impact | ||||
Ongoing | Minority (<50%) | Slow, Significant Declines | Low Impact: 5 | ||||||
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Transportation & service corridors | Roads & railroads | Timing | Scope | Severity | Impact | ||||
Ongoing | Minority (<50%) | Slow, Significant Declines | Low Impact: 5 | ||||||
|
Purpose | Primary form used | Life stage used | Source | Scale | Level | Timing |
---|---|---|---|---|---|---|
Food - human | - | - | - | non-trivial | recent | |
Pets/display animals, horticulture | - | - | - | international | non-trivial | recent |
Recommended citation
BirdLife International (2023) Species factsheet: Ninox randi. Downloaded from
http://datazone.birdlife.org/species/factsheet/chocolate-boobook-ninox-randi on 30/05/2023.
Recommended citation for factsheets for more than one species: BirdLife International (2023) IUCN Red List for birds. Downloaded from
http://datazone.birdlife.org on 30/05/2023.