Taxonomic note
Otus magicus and O. tempestatis (del Hoyo and Collar 2014) were previously lumped as O. magicus, and O. alfredi, O. siaoensis, O. enganensis, O. insularis and O. beccarii (del Hoyo and Collar 2014) were split from O. magicus following Widodo et al. (1999), Lambert and Rasmussen (1998), Andrew (1992) and Holt et al. (1999). Prior to that all these taxa were lumped in O. magicus 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.
Widodo, W.; Cox, J. H.; Rasmussen, P. C. 1999. Rediscovery of the Flores Scops Owl Otus alfredi on Flores, Indonesia, and reaffirnation of its specific status. Forktail 15: 15-23.
Widodo, W.; Cox, J. H.; Rasmussen, P. C. 1999. Rediscovery of the Flores Scops Owl Otus alfredi on Flores, Indonesia, and reaffirnation of its specific status. Forktail 15: 15-23.
Critically Endangered | Endangered | Vulnerable |
---|---|---|
- | B1ab(ii,iii,iv,v); C2a(ii) | B1ab(ii,iii,iv,v); C2a(i,ii); D1 |
Year | Category | Criteria |
---|---|---|
2016 | Endangered | B1ab(ii,iii,iv,v);C2a(ii) |
2013 | Endangered | B1ab(ii,iii,iv,v);C2a(ii) |
2012 | Endangered | B1ab(ii,iii,iv,v);C2a(ii) |
2008 | Endangered | B1a+b(ii,iii,iv,v); C2a(ii) |
2004 | Endangered | |
2000 | Endangered | |
1994 | Not Evaluated | |
1988 | Threatened |
Migratory status | not a migrant | Forest dependency | high |
Land-mass type | Average mass | - |
Estimate | Data quality | |
---|---|---|
Extent of Occurrence (breeding/resident) | 3,500 km2 | medium |
Number of locations | 2-5 | - |
Severely fragmented? | no | - |
Estimate | Data quality | Derivation | Year of estimate | |
---|---|---|---|---|
Population size | 250-2499 mature individuals | poor | estimated | 2000 |
Population trend | decreasing | poor | suspected | 2011-2022 |
Rate of change over the past 10 years/3 generations (longer of the two periods) | 10-19% | - | - | - |
Rate of change over the future 10 years/3 generations (longer of the two periods) | 10-19% | - | - | - |
Rate of change over the past & future 10 years/3 generations (longer of the two periods) | 10-19% | - | - | - |
Generation length | 3.7 years | - | - | - |
Number of subpopulations | 1 | - | - | - |
Percentage of mature individuals in largest subpopulation | 100% | - | - | - |
Population justification: The population is estimated to number in the low hundreds or the low thousands based on an analysis of historical and recent records and surveys. An estimate derived from density data from congeners, and data on the species's Extent of Occurrence, suggests the population numbers 250-2,499 mature individuals. This is roughly equivalent to 370-3,800 individuals in total.
Trend justification: Much habitat below 1,300 m has now been destroyed, yet forest continues to be lost and as a result the species is suspected to be declining at a moderate rate.
Country/Territory | Presence | Origin | Resident | Breeding visitor | Non-breeding visitor | Passage migrant |
---|---|---|---|---|---|---|
Indonesia | extant | native | yes |
Country/Territory | IBA Name |
---|---|
Indonesia | Ruteng |
Indonesia | Todo Repok |
Habitat (level 1) | Habitat (level 2) | Importance | Occurrence |
---|---|---|---|
Forest | Subtropical/Tropical Dry | major | resident |
Forest | Subtropical/Tropical Moist Montane | major | resident |
Altitude | 1000 - 1400 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 | Majority (50-90%) | Slow, Significant Declines | Medium Impact: 6 | ||||||
|
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Agriculture & aquaculture | Annual & perennial non-timber crops - Small-holder farming | Timing | Scope | Severity | Impact | ||||
Ongoing | Minority (<50%) | Slow, Significant Declines | Low Impact: 5 | ||||||
|
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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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Climate change & severe weather | Habitat shifting & alteration | Timing | Scope | Severity | Impact | ||||
Future | Whole (>90%) | Unknown | Unknown | ||||||
|
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Natural system modifications | Fire & fire suppression - Increase in fire frequency/intensity | 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 | ||||||
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Recommended citation
BirdLife International (2024) Species factsheet: Flores Scops-owl Otus alfredi. Downloaded from
https://datazone.birdlife.org/species/factsheet/flores-scops-owl-otus-alfredi 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.