The two sub-species that occur in sub-Saharan Africa are Milvus migrans parasitus and M. m migrans. The South African bird books list them as separate species and just to make things even more confusing, call one of them Yellow-billed Kite which is actually the common name applied to M. m aegyptius (This sub-species does not occur in sub-Saharan Africa unless of course further taxonomy has come to light.)