It has the southernmost nesting site of the marabou stork. Its genus includes the lesser adjutant of Asia and the marabou stork of Africa. Bird species that prey on queleas include the lanner falcon, tawny eagle and marabou stork. The name Marabou was chosen instead from the marabou stork. The falls' cliff-face ledges provide nesting places and breeding sites for a marabou stork colony. For comparison, the heaviest known wild stork was a marabou stork scaling . The marabou stork breeds in colonies, starting during the dry season. The marabou stork ("Leptoptilos crumenifer") is a large wading bird in the stork family Ciconiidae.