The eastern giant eland ranged from Nigeria, through Cameroon, Chad, the Central African Republic, and the Democratic Republic of the Congo (formerly Zaire) to Sudan and Uganda in 1980.[1] But the rinderpest outbreak (1983–1984) caused a devastating 60–80% decline in the populations.[1] The eastern giant eland is still found in extensive areas, though it has a decreasing population trend. Because of this, it is listed as 'Vulnerable' by the IUCN.