Presently known only from south-eastern Ethiopia, western Somalia, and in central and eastern Kenya (d'Huart and Grubb 2001). More recently, the range has been found to extend southwards to Tsavo West National Park, west of Athi River and south of the Galana River (Culverwell et al. 2008, de Jong et al. 2009), and northwards, towards Melka Mari National Park (Obanda et al. in press). Formerly occurred in South Africa, in the south-eastern parts of the former Cape Province and apparently adjacent parts of KwaZulu-Natal, but long since extinct there (d'Huart and Grubb 2001, Grubb and d'Huart 2010). Most records are from near sea level to ca 1,400 m asl (Central Kenya).