Geronticus apelex is apparently the direct ancestor of the Southern Bald Ibis.

In addition there are favourable opportunities for bird habitat, providing more protection from certain predators; for example the threatened Southern Bald Ibis inhabits these cliff habitats.

The Southern Bald Ibis (G. calvus) with a red crown patch but no crest is classified as Vulnerable and found in subtropical southern Africa.

The Southern Bald Ibis (Geronticus calvus) is a large bird found in open grassland or semi-desert in the mountains of southern Africa.

The Northern Bald Ibis' closest relative, and the only other member of the genus, is the Southern Bald Ibis, G. calvus, of southern Africa.

The Northern Bald Ibis is readily distinguished from its close relative, the Southern Bald Ibis of Southern Africa, by the southern species' whitish face.

The Komati Gorge is situated in the upper reaches of the Komati River and is the habitat of some endangered species such as the Southern Bald Ibis.

The effects of predators on adult birds have not been studied, but the very similar Southern Bald Ibis, Geronticus calvus, is hunted by large raptors, particularly those that share its breeding cliffs.

The Southern Bald Ibis (Geronticus calvus) is a large bird found in open grassland or semi-desert in the mountains of southern Africa.

The effects of predators on adult birds have not been studied, but the very similar Southern Bald Ibis, Geronticus calvus, is hunted by large raptors, particularly those that share its breeding cliffs.