The seasonal wildlife migrations scale is said to rival even that of the Serengeti, with more than two million animals simultaneously on the move and with as many as 1.3 million of these antelope. It is one of the largest reserves on the continent, being home to some of the world’s most awe-inspiring wildlife migrations.
The animals are usually moving south and east from March until June, from the floodplains of the Sudd and Bandingilo National Park across to Boma and into Ethiopia, keeping ahead of the rains.
However, in the dry season months from November to January, the direction of the migrations is reversed. The animals return in search of pastures watered and made rich by the silt left behind by the flooding of the White Nile.
The park is an important refuge for white-eared kob, tiang and Mongalla gazelle. Other large mammals are buffalo, elephant, leopard, giraffe, plains zebra, oryx, hartebeest and cheetah. lesser eland, Lelwel hartebeest, zebra, waterbuck, Grant’s gazelle, Lesser kudu, bongo, Giant eland, lion, and Nile lechwe. It is also an important bird area: avifauna includes Ruppell’s Vulture and the Black-chested Snake Eagle. The neighboring Gambela National Park in Ethiopia protects similar species.