IUCN Red List Criteria
| Critically Endangered |
|
| Endangered |
|
| Vulnerable |
D2 |
IUCN Red List history
| Year |
Category |
| 2012 |
Vulnerable |
| 2008 |
Vulnerable |
| 2004 |
Vulnerable |
| 2000 |
Vulnerable |
| 1996 |
Vulnerable |
| 1994 |
Vulnerable |
| 1988 |
Threatened |
Species attributes
| Migratory status |
not a migrant |
Forest dependency |
Low |
| Land mass type |
|
Average mass |
- |
Distribution
| |
Estimate |
Data quality |
| Extent of Occurrence breeding/resident (km2) |
210 |
medium |
| Number of locations |
2-5 |
- |
| Fragmentation |
|
- |
Population & trend
| |
Estimate |
Data quality |
Derivation |
Year of estimate |
| No. of mature individuals |
1700-2000 |
medium |
Estimated |
2000 |
| Population trend |
Stable |
|
|
- |
| Number of subpopulations |
3 |
- |
- |
- |
| Largest subpopulation |
2300 |
- |
- |
- |
| Generation length (yrs) |
5 |
- |
- |
- |
|
Population justification: Studies in 1996-1997 estimated the total population at 2,500-3,000 individuals, roughly equivalent to 1,700-2,000 mature individuals. |
|
Trend justification: The population is suspected to be stable in the absence of evidence for any declines or substantial threats. |
Country/Territory distribution
| Country/Territory |
Occurrence status |
Extinct |
Breeding |
Non-breeding |
Passage |
| Seychelles |
Native |
No |
|
|
|
Important Bird Areas where this species has triggered the IBA criteria
| Country/Territory |
IBA Name |
IBA link |
| Seychelles |
La Digue island |
 |
| Seychelles |
Mahé highlands and surrounding areas |
|
| Seychelles |
Montagne Glacis |
|
| Seychelles |
Praslin National Park and surrounding areas |
|
Habitats & altitude
| Habitat (level 1) |
Habitat (level 2) |
Importance |
Occurrence |
| Caves and Subterranean Habitats (non-aquatic) |
Caves |
major |
breeding |
| Forest |
Subtropical/Tropical Moist Lowland |
suitable |
resident |
| Shrubland |
Subtropical/Tropical Moist |
suitable |
resident |
| Wetlands (inland) |
Permanent Freshwater Lakes (over 8ha) |
major |
resident |
| Wetlands (inland) |
Permanent Freshwater Marshes/Pools (under 8ha) |
major |
resident |
|
Altitude
|
0 - 0 m
|
Occasional altitudinal limits
|
|
Threats & impact
| Threat (level 1) |
Threat (level 2) |
Impact and Stresses |
| Residential & commercial development |
Commercial & industrial areas |
Timing |
Scope |
Severity |
Impact |
| Future |
Minority (<50%) |
Rapid Declines |
Low Impact: 4 |
| Stresses |
|---|
| Ecosystem degradation, Ecosystem conversion |
|
| Energy production & mining |
Mining & quarrying |
Timing |
Scope |
Severity |
Impact |
| Future |
Minority (<50%) |
Rapid Declines |
Low Impact: 4 |
| Stresses |
|---|
| Ecosystem degradation, Ecosystem conversion |
|
| Biological resource use |
Hunting & trapping terrestrial animals / Intentional use (species is the target) |
Timing |
Scope |
Severity |
Impact |
| Past, Unlikely to Return |
Majority (50-90%) |
Slow, Significant Decline |
Past Impact |
| Stresses |
|---|
| Reduced reproductive success, Species mortality |
|
| Invasive non-native/alien species/diseases |
Invasive non-native/alien species/diseases / Barn Owl (Tyto alba) |
Timing |
Scope |
Severity |
Impact |
| Ongoing |
Minority (<50%) |
Unknown |
Unknown |
|
| Invasive non-native/alien species/diseases |
Invasive non-native/alien species/diseases / Domestic Cat (Felis catus) |
Timing |
Scope |
Severity |
Impact |
| Ongoing |
Minority (<50%) |
No decline |
Low Impact: 4 |
| Stresses |
|---|
| Reduced reproductive success |
|
| Invasive non-native/alien species/diseases |
Invasive non-native/alien species/diseases / Unspecified plants |
Timing |
Scope |
Severity |
Impact |
| Ongoing |
Minority (<50%) |
No decline |
Low Impact: 4 |
| Stresses |
|---|
| Ecosystem degradation, Ecosystem conversion |
|
| Pollution |
Agricultural & forestry effluents / Herbicides and pesticides |
Timing |
Scope |
Severity |
Impact |
| Past, Unlikely to Return |
Minority (<50%) |
Slow, Significant Decline |
Past Impact |
| Stresses |
|---|
| Ecosystem degradation, Ecosystem conversion |
|
Recommended citation
BirdLife International (2013) Species factsheet: Collocalia elaphra. Downloaded from
http://www.birdlife.org on 23/05/2013.
Recommended citation for factsheets for more than one species: BirdLife International (2013) IUCN Red List for birds. Downloaded from
http://www.birdlife.org on 23/05/2013.
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.
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