The park is an important refuge for white-eared kob, tiang, and Mongalla gazelle. Other large mammals are buffalo, elephant, African leopard, Nubian giraffe, oryx, hartebeest, Northeast African cheetah,[4] common eland, Lelwel hartebeest, maneless zebra, waterbuck, Grant's gazelle, Lesser kudu, bongo, Giant eland, and Nile lechwe.[5] It is also an important bird area; avifauna includes Ruppell's vulture and the black-chested snake eagle.[6][7] The neighboring Gambela National Park in Ethiopia protects similar species.