Data Zone
Taxonomic source(s)
del Hoyo, J., Collar, N.J., Christie, D.A., Elliott, A., Fishpool, L.D.C., Boesman, P. and Kirwan, G.M. 2016. HBW and BirdLife International Illustrated Checklist of the Birds of the World. Volume 2: Passerines. Lynx Edicions and BirdLife International, Barcelona, Spain and Cambridge, UK.
| Critically Endangered | Endangered | Vulnerable |
|---|---|---|
| - | - | - |
| Year | Category | Criteria |
|---|---|---|
| 2016 | Near Threatened | A2c+3c+4c |
| 2012 | Near Threatened | A2c+3c+4c |
| 2008 | Near Threatened | A2c; A3c; A4c |
| 2004 | Near Threatened | |
| 2000 | Lower Risk/Near Threatened | |
| 1994 | Lower Risk/Near Threatened | |
| 1988 | Lower Risk/Least Concern |
| Migratory status | not a migrant | Forest dependency | high |
| Land-mass type |
Land-mass type - shelf island |
Average mass | - |
| Estimate | Data quality | |
|---|---|---|
| Extent of Occurrence breeding/resident (km2) | 658,000 | medium |
| Severely fragmented? | no | - |
| Value | Data quality | Derivation | Year of estimate | |
|---|---|---|---|---|
| Number of mature individuals | unknown | not applicable | not applicable | 0 |
| Population trend | decreasing | poor | suspected | 2011-2021 |
| Decline % (10 years/3 generations future) | 20-29 | - | - | - |
| Decline % (10 years/3 generations past and future) | 20-29 | - | - | - |
| Generation length (years) | 2.8 | - | - | - |
Population justification: The population size of this species has not been quantified, but it is described as fairly common at relatively high elevations (B. Harris in litt. 2016).
Trend justification: Data on trends are lacking, but continuing habitat loss within the species's range suggests that a moderately rapid population decline is likely to be occurring.
| Country/Territory | Presence | Origin | Resident | Breeding | Non-breeding | Passage |
|---|---|---|---|---|---|---|
| Indonesia | extant | native | yes |
| Country/Territory | IBA Name |
|---|---|
| Indonesia | Kerinci Seblat |
| Indonesia | Gunung Dempo |
| Indonesia | Bukit Bahar - Tajau Pecah |
| Indonesia | Siak Kecil |
| Indonesia | Meranti |
| Indonesia | Bukit Barisan Selatan |
| Indonesia | Pulau Siberut |
| Indonesia | Bukit Kaba |
| Indonesia | Gunung Leuser |
| Habitat (level 1) | Habitat (level 2) | Importance | Occurrence |
|---|---|---|---|
| Forest | Subtropical/Tropical Dry | major | resident |
| Forest | Subtropical/Tropical Moist Lowland | major | resident |
| Altitude | 0 - 800 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%) | 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 | Majority (50-90%) | Slow, Significant Declines | Medium Impact: 6 | ||||||
|
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| Agriculture & aquaculture | Wood & pulp plantations - Agro-industry plantations | 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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Recommended citation
BirdLife International (2023) Species factsheet: Dicrurus sumatranus. Downloaded from
http://datazone.birdlife.org/species/factsheet/sumatran-drongo-dicrurus-sumatranus on 25/09/2023.
Recommended citation for factsheets for more than one species: BirdLife International (2023) IUCN Red List for birds. Downloaded from
http://datazone.birdlife.org on 25/09/2023.
