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
                     1 Subfamily Herpetotherinae Lesson - laughing falcons see Family Falconidae Vigors, 1824
                     2 Subfamily Polyborinae Lafresnaye, 1839
                     3 Subfamily Polihieracinae Peters - pigmy falcons see Subfamily Falconinae Vigors, 1824
                     4 Subfamily Falconinae Vigors, 1824 - falcons