Class Aves Linnaeus, 1758 - birds see Subclass Aves Linnaeus, 1758
   Subclass Neornithes Gadow, 1893 see Clade Neornithes Gadow, 1893
     Infraclass Neoaves Sibley et al., 1988 see Subcohort Neoaves Sibley et al., 1988
       Parvclass Passerae see Superorder Passerimorphae Sibley et al., 1988
         Superorder Cuculimorphae Sibley et al., 1988
           Order Cuculiformes Wagler, 1830 - cuckoos and plantain-eaters
             Infraorder Cuculides see Order Cuculiformes Wagler, 1830
               Parvorder Coccyzida see Order Cuculiformes Wagler, 1830
                 Family Coccyzidae - American cuckoos see Family Cuculidae Vigors, 1825
                   Genus Coccyzus Vieillot, 1816
                     1 Coccyzus pumilus Strickland, 1852 - dwarf cuckoo
                     2 Coccyzus cinereus Vieillot, 1817 - ash-colored cuckoo
                     3 Coccyzus erythropthalmus (Wilson, 1811) - black-billed cuckoo
                     4 Coccyzus americanus (C. Linnaeus, 1758) - yellow-billed cuckoo
                     5 Coccyzus euleri Cabanis, 1873 - pearly-breasted cuckoo
                     6 Coccyzus minor (J.F. Gmelin, 1788) - mangrove cuckoo
                     7 Coccyzus ferrugineus Gould, 1843 - Cocos cuckoo
                     8 Coccyzus melacoryphus Vieillot, 1817 - dark-billed cuckoo
                     9 Coccyzus lansbergi Bonaparte, 1850 - grey-capped cuckoo