Black wildebeest
Where it lives alongside the blue wildebeest, the two species can hybridise, and this is regarded as a potential threat to the maintenance of the species. The black wildebeest was once very numerous and was present in Southern Africa in vast herds, but by the end of the 19th century, it had nearly been hunted to extinction and fewer than 600 animals remained. A small number of individuals was still present in game reserves and at zoos, and from these, the population was rescued.
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.