Black wildebeest
Black wildebeest act as hosts to a number of external and internal parasites. A study of the animal in Karroid Mountainveld (Eastern Cape Province, South Africa) revealed the presence of all the larval stages of the nasal bot flies "Oestrus variolosus" and "Gedoelstia hässleri". The first instar larvae of "G. hässleri" were found in large numbers on the dura mater of wildebeest calves, specially between June and August, and these later migrated to the nasal passages. Repeated outbreaks of mange (scab) have led to large-scale extinctions. The first study of the protozoa in blue and black wildebeest showed the presence of 23 protozoan species in the rumen, with "Diplodinium bubalidis" and "Ostracodinium damaliscus" common in all the animals.
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.