Paler than Red-billed Oxpecker and easily identified by its bright yellow bill with a red tip, as well as by the pale lower back and rump.
Juvenile has a brown (not black) bill and is paler than juvenile Red-billed Oxpecker. The pale back and rump contrast with the rest of upperparts.
Thornveld and broad-leaved woodland, often near water. Frequently found in association with buffalo, rhino and hippo. Usually flocks.
A short, hissing 'kriss, kriss'.