The oxpeckers are two species of bird which make up the family Buphagidae. Oxpeckers graze exclusively on the bodies of large mammals. In many parts of their range they now feed on cattle, but avoid camels. They feed on ectoparasites, particularly ticks, as well as insects infesting wounds and the flesh and blood of some wounds as well. They are sometimes classified as parasites, because they open wounds on the animals' back.