"African Buffalo or Cape Buffalo (Syncerus caffer) with a Red-billed Oxpecker (Buphagus erythrorhynchus), on its head, Kruger National Park, South Africa, Africa"

White Rhinoceros or Square-lipped Rhinoceros (Ceratotherium simum), adult male walking on dry grass, with two Red-billed Oxpeckers (Buphagus erythrorhynchus) on its back, Kruger National Park, South Africa, Africa

White Rhinoceros or Square-lipped Rhinoceros (Ceratotherium simum), lying down, covered in flies, with two Red-billed Oxpeckers (Buphagus erythrorhynchus) on it, Kruger National Park, South Africa, Africa

White Rhinoceros or Square-lipped Rhinoceros (Ceratotherium simum), lying down, covered in flies, with Red-billed Oxpecker (Buphagus erythrorhynchus) on its back, Kruger National Park, South Africa, Africa

White Rhinoceros or Square-lipped Rhinoceros (Ceratotherium simum), lying on side, covered in flies, with Red-billed Oxpecker (Buphagus erythrorhynchus) on its back, Kruger National Park, South Africa, Africa

White Rhinoceros or Square-lipped Rhinoceros (Ceratotherium simum), lying on its side, covered in flies, with Red-billed Oxpecker (Buphagus erythrorhynchus) on its back, Kruger National Park, South Africa, Africa

White Rhinoceros or Square-lipped Rhinoceros (Ceratotherium simum), standing in dry grass, covered in flies, with two Red-billed Oxpeckers (Buphagus erythrorhynchus) on its back, Kruger National Park, South Africa, Africa

Three red-billed oxpeckers (Buphagus erythrorhynchus), perched on the back of a greater kudu (tragelaphus strepsiceros), Kruger National Park, South Africa, Africa

African buffalo or Cape buffalo (Syncerus caffer) with Red-billed oxpecker (Buphagus erythrorhynchus) on its neck, portrait, Kruger National Park, South Africa, Africa

Rotschnabeltoko (Tockus erythrorhynchus), Chitwa Chitwa, Sabi Sands Wildreservat, Mpumalanga, Sudafrika

Rotschnabeltoko (Tockus erythrorhynchus), auf Dornbusch sitzend, Samburu Nationalreservat, Kenia, Afrika

Rotschnabeltoko (Tockus erythrorhynchus), in einem Baum sitzend, Samburu Nationalreservat, Kenia, Afrika

Northern Red-billed Hornbill (Tockus erythrorhynchus), adult on tree, Kruger National Park, South Africa, Africa