Kingdom [Animalia] Linnaeus, 1758 - animals
   Subkingdom Metazoa Haeckel, 1874 see Kingdom Animalia Linnaeus, 1758
     Division Eumetazoa Butschli, 1910 see Subkingdom Eumetazoa Butschli, 1910
       Subdivision Bilateralia
         Phylum Chordata Bateson, 1885 - chordates
           Subphylum Vertebrata Cuvier, 1812 - vertebrates
             Class Aves Linnaeus, 1758 - birds see Subclass Aves Linnaeus, 1758
               Subclass Neornithes Gadow, 1893 see Clade Neornithes Gadow, 1893
                 Order Coraciiformes Forbes, 1884 - rollerlike birds
                   Family Bucerotidae Vigors - hornbills
                     Genus Bucorvus Lesson, 1830
                       1 Bucorvus abyssinicus (Boddaert, 1783) - Abyssinian ground-hornbill
                       2 Bucorvus cafer (Schlegel, 1862) see Bucorvus leadbeateri (Vigors, 1825)