living organisms see Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020]
   Superkingdom Eukaryotae see Domain Eukaryota Chatton, 1925
     Kingdom Animalia Linnaeus, 1758 - animals
       Subkingdom Eumetazoa Butschli, 1910 see [unranked] Eumetazoa Bütschli, 1910
         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
                 Superorder Neognathae Pycraft, 1900 see Cohort Neognathae Pycraft, 1900
                   Order Ciconiiformes Bonaparte, 1854
                     1 Family Ardeidae Leach, 1820 - herons, bitterns and egrets
                     2 Family Cochleariidae Ridgway, 1887
                     3 Family Balaenicipitidae Bonaparte - shoebill
                     4 Family Scopidae Bonaparte, 1853 - hammerkop
                     5 Family Ciconiidae Sundevall, 1836 - storks
                     6 Family Threskiornithidae Richmond, 1917 - ibises and spoonbills