| |
Estimate |
Data quality |
Derivation |
Year of estimate |
| No. of mature individuals |
5300-6700 |
medium |
Estimated |
2006 |
| Population trend |
Decreasing |
good |
|
- |
| Number of subpopulations |
1 |
- |
- |
- |
| Largest subpopulation |
8000-10000 |
- |
- |
- |
| Generation length (yrs) |
16 |
- |
- |
- |
|
Population justification: In 2006, the total population was estimated at 8,000-10,000 individuals (M. Diekmann in litt. 2006), roughly equivalent to 5,300-6,700 mature individuals. |
|
Trend justification: The population is estimated to have declined by 10% between 1994 and 1999 (Barnes 2000), and over the period 1992-2007, the species declined by 60-70% in eastern South Africa (McKean and Botha 2007). Until further analysis is carried out the overall rate of decline is presumed to be at, or just exceeding 20% over three generations. |
| Country/Territory |
IBA Name |
IBA link |
| Botswana |
Mannyelanong Hill |
 |
| Botswana |
Tswapong Hills |
|
| Lesotho |
Liqobong |
|
| Lesotho |
Mafika - Lisiu |
|
| Lesotho |
Sehlabathebe National Park |
|
| Lesotho |
Sehonghong and Matebeng |
|
| Lesotho |
Upper Quthing Valley |
|
| Lesotho |
Upper Senqu River |
|
| Mozambique |
Changelane river gorge |
|
| Mozambique |
Maputo Special Reserve |
|
| Namibia |
Waterberg Plateau Park |
|
| South Africa |
Blouberg vulture colonies |
|
| South Africa |
Blyde river canyon |
|
| South Africa |
Collywobbles vulture colony |
|
| South Africa |
De Hoop Nature Reserve |
|
| South Africa |
Golden Gate Highlands and Qwaqwa National Parks |
|
| South Africa |
Greater Ingwangwana river |
|
| South Africa |
Hluhluwe-Umfolozi Park |
|
| South Africa |
Kruger National Park and adjacent areas |
|
| South Africa |
KwaZulu-Natal mistbelt grasslands |
|
| South Africa |
Magaliesberg and Witwatersberg |
|
| South Africa |
Mkambati Nature Reserve |
|
| South Africa |
Natal Drakensberg Park |
|
| South Africa |
Oribi Gorge Nature Reserve |
|
| South Africa |
Pilanesberg National Park |
|
| South Africa |
Soutpansberg |
|
| South Africa |
Sterkfontein Dam Nature Reserve |
|
| South Africa |
Umtamvuna Nature Reserve |
|
| South Africa |
Waterberg system |
|
| Zimbabwe |
Hwange National Park |
|
| Zimbabwe |
Wabai Hill (Debshan Ranch) |
|
| Threat (level 1) |
Threat (level 2) |
Impact and Stresses |
| Residential & commercial development |
Housing & urban areas |
Timing |
Scope |
Severity |
Impact |
| Ongoing |
Minority (<50%) |
Negligible declines |
Low Impact: 4 |
| Stresses |
|---|
| Ecosystem degradation, Ecosystem conversion |
|
| Agriculture & Aquaculture |
Livestock farming & ranching / Agro-industry grazing, ranching or farming |
Timing |
Scope |
Severity |
Impact |
| Ongoing |
Majority (50-90%) |
Slow, Significant Decline |
Medium Impact: |
| Stresses |
|---|
| Species mortality |
|
| Agriculture & Aquaculture |
Livestock farming & ranching / Small-holder grazing, ranching or farming |
Timing |
Scope |
Severity |
Impact |
| Ongoing |
Majority (50-90%) |
Slow, Significant Decline |
Medium Impact: |
| Stresses |
|---|
| Species mortality |
|
| Transportation & service corridors |
Roads & railroads |
Timing |
Scope |
Severity |
Impact |
| Ongoing |
Minority (<50%) |
Negligible declines |
Low Impact: 4 |
| Stresses |
|---|
| Species mortality |
|
| Transportation & service corridors |
Utility & service lines |
Timing |
Scope |
Severity |
Impact |
| Ongoing |
Majority (50-90%) |
Negligible declines |
Low Impact: 5 |
| Stresses |
|---|
| Species mortality |
|
| Biological resource use |
Fishing & harvesting aquatic resources / Persecution/control |
Timing |
Scope |
Severity |
Impact |
| Ongoing |
Minority (<50%) |
Slow, Significant Decline |
Low Impact: 5 |
| Stresses |
|---|
| Species mortality |
|
| Biological resource use |
Gathering terrestrial plants / Unintentional effects (species is not the target) |
Timing |
Scope |
Severity |
Impact |
| Ongoing |
Majority (50-90%) |
Slow, Significant Decline |
Medium Impact: |
| Stresses |
|---|
| Species mortality |
|
| Biological resource use |
Hunting & trapping terrestrial animals / Intentional use (species is the target) |
Timing |
Scope |
Severity |
Impact |
| Ongoing |
Minority (<50%) |
Negligible declines |
Low Impact: 4 |
| Stresses |
|---|
| Species mortality |
|
| Human intrusions & disturbance |
Recreational activities |
Timing |
Scope |
Severity |
Impact |
| Ongoing |
Minority (<50%) |
Slow, Significant Decline |
Low Impact: 5 |
| Stresses |
|---|
| Species disturbance |
|
| Natural system modifications |
Other ecosystem modifications |
Timing |
Scope |
Severity |
Impact |
| Ongoing |
Minority (<50%) |
Slow, Significant Decline |
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%) |
No decline |
Low Impact: 4 |
|
| Climate change & severe weather |
Habitat shifting & alteration |
Timing |
Scope |
Severity |
Impact |
| Ongoing |
Minority (<50%) |
Unknown |
Unknown |
| Stresses |
|---|
| Ecosystem degradation, Ecosystem conversion |
|
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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