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 Falconiformes Sharpe, 1874
                   Family Falconidae Vigors, 1824 - falcons, caracaras
                     Subfamily Polyborinae Lafresnaye, 1839
                       1 Genus Daptrius Vieillot, 1816
                       2 Genus Milvago Spix, 1824
                       3 Genus Phalcoboenus d'Orbigny, 1834
                       4 Genus Polyborus Vieillot, 1816, nom. illeg. see Genus Caracara Merrem, 1826