Neornithes Gadow, 1893 - living birds
   Neognathae Pycraft 1900 see Cohort Neognathae Pycraft, 1900
     Neoaves Sibley et al. 1988 see Subcohort Neoaves Sibley et al., 1988
       [Order] Cuculiformes Wagler, 1830 - cuckoos and plantain-eaters
         Family Cuculidae Vigors, 1825 - cuckoos
           Subfamily Cuculinae Vigors, 1825
             Genus Cuculus Linnaeus, 1758
               01 Cuculus crassirostris (Walden, 1872) - Sulawesi hawk-cuckoo
               02 Cuculus sparverioides Vigors, 1832 - large hawk-cuckoo
               03 Cuculus varius Vahl, 1797 - common hawk-cuckoo
               04 Cuculus vagans S. Müller, 1845 - moustached hawk-cuckoo
               05 Cuculus fugax Horsfield, 1821 - Hodgson's hawk-cuckoo
               06 Cuculus hyperythrus Gould, 1856
               07 Cuculus pectoralis (Cabanis & Heine, 1863)
               08 Cuculus solitarius Stephens, 1815 - red-chested cuckoo
               09 Cuculus clamosus Latham, 1802 - black cuckoo
               10 Cuculus micropterus Gould, 1837[1838] - Indian cuckoo
               11 Cuculus canorus Linnaeus, 1758 - common cuckoo
               12 Cuculus gularis Stephens, 1815 - African cuckoo
               13 Cuculus saturatus Blyth, 1843 - Oriental cuckoo
               14 Cuculus poliocephalus Latham, 1790 - lesser cuckoo
               15 Cuculus rochii Hartlaub, 1863 - Madagascar cuckoo
               16 Cuculus pallidus (Latham, 1802) - pallid cuckoo