IUCN Red List Criteria
| Critically Endangered |
|
| Endangered |
|
| Vulnerable |
C2a(ii) |
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 |
Does not normally occur in forest |
| Land mass type |
continent
|
Average mass |
- |
Distribution
| |
Estimate |
Data quality |
| Extent of Occurrence breeding/resident (km2) |
66,800 |
medium |
| Extent of Occurrence non-breeding (km2) |
319,000 |
medium |
| Number of locations |
11-100 |
- |
| Fragmentation |
|
- |
Population & trend
| |
Estimate |
Data quality |
Derivation |
Year of estimate |
| No. of mature individuals |
2500-3300 |
medium |
Estimated |
1999 |
| Population trend |
Decreasing |
medium |
|
- |
| Number of subpopulations |
1 |
- |
- |
- |
| Largest subpopulation |
3000-5000 |
- |
- |
- |
| Generation length (yrs) |
6.6 |
- |
- |
- |
|
Population justification: A population estimate of 3,000-5,000 individuals follows new surveys and replaces Collar and Stuart's (1985) estimate of 5,000-10,000 individuals. This roughly equates to 2,500-3,300 mature individuals. |
|
Trend justification: The population is suspected to be in decline owing to the effects of habitat conversion and degradation, and human disturbance. The likely rate of decline, however, has not been estimated. |
Country/Territory distribution
| Country/Territory |
Occurrence status |
Extinct |
Breeding |
Non-breeding |
Passage |
| Angola |
Unknown |
No |
|
Yes |
|
| Botswana |
Native |
No |
|
|
|
| Congo, The Democratic Republic of the |
Native |
- |
|
Yes |
|
| Malawi |
Vagrant |
No |
|
Yes |
|
| Mozambique |
Native |
No |
|
|
|
| Namibia |
Native |
No |
|
|
|
| South Africa |
Native |
No |
|
|
|
| Zambia |
Native |
No |
|
Yes |
|
| Zimbabwe |
Native |
No |
|
Yes |
|
Important Bird Areas where this species has triggered the IBA criteria
| Country/Territory |
IBA Name |
IBA link |
| Botswana |
Linyanti swamp/Chobe river |
 |
| Botswana |
Okavango Delta |
|
| Namibia |
Eastern Caprivi wetlands |
|
| Namibia |
Mahango Game Reserve and Kavango river |
|
| Namibia |
Tsumkwe pan system |
|
| Zambia |
Bangweulu Swamps |
|
| Zambia |
Kafue Flats |
|
| Zambia |
Kafue National Park |
|
| Zambia |
Liuwa Plain National Park |
|
| Zambia |
Simungoma |
|
Habitats & altitude
| Habitat (level 1) |
Habitat (level 2) |
Importance |
Occurrence |
| 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 |
| Agriculture & Aquaculture |
Annual & perennial non-timber crops / Small-holder farming |
Timing |
Scope |
Severity |
Impact |
| Ongoing |
Majority (50-90%) |
Slow, Significant Decline |
Medium Impact: |
| Stresses |
|---|
| Ecosystem degradation, Ecosystem conversion |
|
| Biological resource use |
Gathering terrestrial plants / Unintentional effects (species is not the target) |
Timing |
Scope |
Severity |
Impact |
| Ongoing |
Minority (<50%) |
Slow, Significant Decline |
Low Impact: 5 |
| Stresses |
|---|
| Species disturbance, Ecosystem degradation, Ecosystem conversion, Reduced reproductive success |
|
| Human intrusions & disturbance |
Recreational activities |
Timing |
Scope |
Severity |
Impact |
| Ongoing |
Minority (<50%) |
Negligible declines |
Low Impact: 4 |
| Stresses |
|---|
| Species disturbance, Reduced reproductive success |
|
| Natural system modifications |
Dams & water management/use / Abstraction of surface water (unknown use) |
Timing |
Scope |
Severity |
Impact |
| Ongoing |
Minority (<50%) |
Slow, Significant Decline |
Low Impact: 5 |
| Stresses |
|---|
| Ecosystem degradation, Ecosystem conversion |
|
| Natural system modifications |
Fire & fire suppression / Trend Unknown/Unrecorded |
Timing |
Scope |
Severity |
Impact |
| Ongoing |
Minority (<50%) |
Slow, Significant Decline |
Low Impact: 5 |
| Stresses |
|---|
| Ecosystem degradation, Ecosystem conversion |
|
| Natural system modifications |
Other ecosystem modifications |
Timing |
Scope |
Severity |
Impact |
| Ongoing |
Minority (<50%) |
Causing/Could cause fluct |
Low Impact: 5 |
| Stresses |
|---|
| Ecosystem degradation, Ecosystem conversion |
|
| Invasive non-native/alien species/diseases |
Problematic native species/diseases |
Timing |
Scope |
Severity |
Impact |
| Ongoing |
Minority (<50%) |
Negligible declines |
Low Impact: 4 |
| Stresses |
|---|
| Ecosystem degradation, Ecosystem conversion |
|
| Pollution |
Agricultural & forestry effluents / Herbicides and pesticides |
Timing |
Scope |
Severity |
Impact |
| Ongoing |
Minority (<50%) |
Unknown |
Unknown |
| Stresses |
|---|
| Ecosystem degradation, Ecosystem conversion |
|
| Climate change & severe weather |
Other impacts |
Timing |
Scope |
Severity |
Impact |
| Ongoing |
Majority (50-90%) |
Causing/Could cause fluct |
Medium Impact: |
| Stresses |
|---|
| Ecosystem degradation, Ecosystem conversion |
|
Utilisation
| Purpose |
Primary form used |
Life stage used |
Source |
Scale |
Level |
Timing |
| Pets |
Whole |
Adults and juveniles |
Wild |
International |
Non-trivial |
Recent |
Recommended citation
BirdLife International (2013) Species factsheet: Egretta vinaceigula. Downloaded from
http://www.birdlife.org on 24/05/2013.
Recommended citation for factsheets for more than one species: BirdLife International (2013) IUCN Red List for birds. Downloaded from
http://www.birdlife.org on 24/05/2013.
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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