High Quality Content by WIKIPEDIA articles! The Yellow-billed Oxpecker, Buphagus africanus, is a passerine bird in the starling and myna family Sturnidae; some ornithologists regard the Oxpeckers to be a separate family, the Buphagidae (Zuccon, 2006). It is native to the savannah of sub-Saharan Africa from Senegal east to Sudan. It is least common in the extreme east of its range where it overlaps with the Red-billed Oxpecker, despite always dominating that species when feeding. The Yellow-billed Oxpecker is 20 cm long and has plain brown upperparts and head, buff underparts and a pale rump. The feet are strong. The adults' bills are yellow and the base and red at the tip, while juveniles have brown bills. Its flight is strong and direct. The call is a hissy crackling krisss, krisss.