The Kenyan Oribi is one of the about nine subspecies of the Oribi (Ourebia ourebi Zimmerman), a small antelope species that is distributed over several parts of central-, eastern- and even southern Africa; it was apparently restcicted to the slopes of Mt. Kenya.
This form apparently died out in the wild sometimes during the 1960s and was subsequently kept in captivity for some time; its actual extinction date obviously is not known but is believed to be sometimes during the 1980s.
Oribi (Ourebia ourebi), nominate form?
Depiction from: ‘P. L. Sclater; O. Thomas: The Book of Antelopes. London: R. H. Porter 1894-1900’
The White-winged Apalis has a strangely disjunct distribution with a small population, forming the nominate race, being known from Kenya, while another subspecies, MacPherson’s White-winged Apalis (Apalis chariessa ssp. macphersoni Vincent) (see photo below) is found in Malawi, Mozambique and Tanzania