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 Pachycoccyx Cabanis, 1882 [monotypic]
Pachycoccyx audeberti (Schlegel, 1879) - thick-billed cuckoo
1 Pachycoccyx audeberti brazzae (Oustalet, 1886)
2 Pachycoccyx audeberti validus (Reichenow, 1879)
3 Pachycoccyx audeberti audeberti (Schlegel, 1879)