Black wildebeest
Features necessary for defending a territory, such as the horns and broad-based skull of the modern black wildebeest, have been found in their fossil ancestors. The earliest known fossil remains are in sedimentary rock in Cornelia in the Orange Free State and date back about 800,000 years. Fossils have also been reported from the Vaal River deposits, though whether or not they are as ancient as those found in Cornelia is unclear. Horns of the black wildebeest have been found in sand dunes near Hermanus in South Africa. This is far beyond the recorded range of the species and it has been suggested that these animals may have migrated to that region from the Karoo.
Black-cheeked lovebird
The black-cheeked lovebird inhabits deciduous woodland, where permanent supplies of surface water exist, as it needs daily access to water. In the dry season, these birds may congregate in large flocks of up to 800 or more. They are found in Zambia and may occur in Zimbabwe, Botswana and Nambia. 
It is listed as a vulnerable species its population is in decline due to continuous habitat loss. This is due to gradual desiccation of water bodies, causing drought,farming practices, hunting and trapping, fishing, logging and dieseses. There are currently only between 2500 and 9999 mature individuals. However, they occur in nature reserves and there is an action plan in place to help them.