 The oribi occurs in a variety of habitats – from <unk> , floodplains and tropical grasslands with 10 – 100 centimetres ( 3 @.@ 9 – 39 @.@ 4 in ) tall grasses to <unk> grasslands at low altitudes , up to 2 @,@ 000 metres ( 6 @,@ 600 ft ) above the sea level . This antelope is highly sporadic in distribution , ranging from Senegal in the west to Ethiopia and Eritrea in the east and southward to Angola and the Eastern Cape ( South Africa ) . The oribi has been classified as Least Concern by the IUCN ; numbers have declined due to agricultural expansion and competition from livestock . 
