An extinct relative was also present in the Indonesian island of Flores during the Late Pleistocene, indicating that the genus was more widespread in the past.
This species is unique among African vultures as it shows a degree of reversed sexual dimorphism, where females are somewhat larger than males.
Individual white-headed vultures can also be reliably identified based on a unique pattern in their median wing coverts.
For example, the Kruger National Park and neighboring conservation areas hold the largest population of the species in South Africa.
From a study in the Kruger National Park, copulation only occurred on the nest and is described as a subtle and inconspicuous process that lasts approximately 15 to 20 seconds.
[7] For example, instances of pairs preying on species such as the slender mongoose (Galarella sanguinea), monitor lizard (Varanus spp), tree squirrel (Paraxerus cepapi) and scrub hare (Lepus saxatilis) have been recorded.
Specifically, they have a significantly wider binocular field (30°, compared to the 20° of Gyps vultures), which is thought to help with the accurate placement and timing of the talons necessary to capture live prey.
[1] The main threats to white-headed vulture populations are reductions in the availability of suitable food sources (carcasses of medium-sized mammals and ungulates) and the loss of habitat to the spread of urban and agricultural developments.
It is suspected that they died after eating the carcasses of 3 elephants that were poisoned by poachers, possibly to avoid detection by the birds, which help rangers to track poaching activity by circling above where there are dead animals.