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Location Botswana, South East
Central coordinates 25o 45.60' East  25o 3.60' South
IBA criteria A1, A4ii
Area 100 ha
Altitude 1,200 m
Year of IBA assessment 2001

BirdLife Botswana (Partner Designate)

Site description A sandstone hill with a sheer and high cliff-face at its southern end. It lies just south-east of the village of Otse in the hardveld of south-east Botswana. The lower slopes of this hill are well wooded. The whole hill was declared a Game Reserve in 1965 and the cliff and the wooded slope below was fenced off. There is no public access within this area except by permission from DWNP.

Key Biodiversity See Box for key species. The cliff-face is included as an IBA because of its important nesting population of Gyps coprotheres, one of only two localities currently used by this species in Botswana. G. coprotheres is known to have nested in south-east Botswana since at least the end of the 19th century. The Mannyelanong cliff, the two nearby sandstone hills of Otse and Baratani, and a sandstone escarpment, Manyana, about 30 km away, have been used in the past as breeding sites by G. coprotheres, but Mannyelanong is now the only occupied site in south-east Botswana. Historical counts have been sporadic, although the colony is now regularly surveyed. During the 1960s, over 100 breeding pairs occurred at Mannyelanong with two smaller colonies on Otse and Baratani. Over 450 nestlings were ringed between 1973 and 1983. The south-eastern Botswanan breeding population underwent a decline of about 45% from 1963 to 1982 and then stabilized during the following decade at around 50 pairs breeding per season. One pair of Ciconia nigra nests on the cliffs; the nest-site has been used in most seasons since 1941. Aquila verreauxi also breeds on the Mannyelanong cliffs, together with Falco biarmicus and F. tinnunculus.

Populations of IBA trigger species

Species Season Period Population estimate Quality of estimate IBA Criteria IUCN Category
Cape Vulture Gyps coprotheres resident  50-100 breeding pairs  A1, A4ii  Endangered 
Cape Vulture Gyps coprotheres winter  150-250 individuals  A4ii  Endangered 

IBA Monitoring

2012 low near favourable high
Medium - based upon reliable but incomplete / partially representative data

Human intrusions and disturbance work and other activities likely in long term (beyond 4 years) small area/few individuals (<10%) no or imperceptible deterioration low

Gyps coprotheres Cape Vulture 200 178 nests 89 near favourable
Gyps coprotheres Cape Vulture 452 450 mature individuals 100 favourable
Gyps coprotheres Cape Vulture 1000 867 breeding pairs 87 near favourable

Whole area of site (>90%) covered by appropriate conservation designation  A management plan exists but it is out of date or not comprehensive  The conservation measures needed for the site are being comprehensively and effectively implemented  high 

Protected areas

Protected area Designation Area (ha) Relationship with IBA Overlap with IBA (ha)  
Mannyelang Game Reserve 300 protected area contains site 100  

Local conservation groups The local conservation group below is working to support conservation at this IBA.

Name Year formed
Cape Vultures Environmental Conservation Club 2004

Land use

Land-use Extent (% of site)
nature conservation and research -

References Borello and Borello (1993), Smith (1983).

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Recommended citation  BirdLife International (2016) Important Bird and Biodiversity Area factsheet: Mannyelanong Hill. Downloaded from on 22/10/2016

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