Sites - Important Bird and Biodiversity Areas (IBAs)
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South Africa, Gauteng,North-West Province
27o 40.00' East 25o 45.00' South
A1, A4i, A4ii
1,100 - 1,851m
Year of IBA assessment
BirdLife South Africa
Summary This large area includes the Magaliesburg range on the Gauteng and North West border. The Cape Vulture Gyps coprotheres breeds on the mountain. Many raptor species have been recorded here for example White-backed Vulture Gyps africanus and Lappet-faced Vulture Aegypius tracheliotus.
Site description This large area includes the magisterial districts of the former Bophuthatswana, Brits, Rustenburg, Swartruggens, Ventersdorp, Koster and Oberholzer. The Magaliesberg range extends in an arc from just south of Rustenburg in the west to Hartbeespoort Dam near Pretoria in the east. Peaks in the west include Tshufi (1,592 m) and Rustenburgkloof (1,688 m), in the centre Nooitgedacht (1,851 m) and Doornhoek (1,786 m), and in the east Versigtig (1,563 m), Myoko (1,523 m) and Sun Glory (1,601 m) are found in the vicinity of Hartbeespoort Dam.
To the south, the Witwatersberg range runs parallel to the Magaliesberg, extending from the town of Magaliesberg in the west to Hartbeespoort Dam in the east. The Ben-Tor Gloster (1,674 m), Hartebeeshoek (1,585 m) and Skeerpoort (1,544 m) peaks dominate the Witwatersberg. Several large rivers have their headwaters in these mountains, including the Crocodile, Sterkstroom, Magalies and Skeerpoort rivers. Three major impoundments lie along the Magaliesberg; the massive Hartbeespoort Dam in the east, Buffelspoort Dam in the centre and Olifantsnek Dam about 7 km south of Rustenburg.The mountain peaks and slopes are clothed in open broadleaved woodland of Faurea, Acacia, Bequaertiodendron, Burkea, Peltophorum, Kirkia, Combretum, Albizia and Diplorrhynchus, and proteoid shrubland occurs on cool slopes. The surrounding land, especially that to the north of the mountain range, is used primarily for cattle-ranching, with some intensive crop and fruit-farming on the northern slopes of the Magaliesberg range.
Key Biodiversity See Box for key species. Gyps coprotheres breeds at two main colonies—the larger Skeerpoort (25°45’S 27°45’E) and the sister colony at Robert’s Farm (25°50’S 27°17’E)—as well as a satellite colony at Nooitgedacht. There appears to be a decline in the numbers of vultures breeding at Robert’s Farm, and it seems that birds may have transferred to Nooitgedacht, following the introduction of a vulture restaurant there, below an abandoned colony. Many other raptor species have been recorded at Skeerpoort, including Gyps africanus and Torgos tracheliotus. Patches of grassland are known to hold small numbers of Grus paradisea.
Non-bird biodiversity: Hyaena brunnea (LR/nt) is a major large predator in the area.