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] Caprimulgiformes Ridgway, 1881 - nightjars
         Family Caprimulgidae Vigors, 1825 - nightjars
           Subfamily Caprimulginae Vigors, 1825 - nightjars
             Genus Nyctiphrynus Bonaparte, 1857
               1 Nyctiphrynus mcleodii (Brewster, 1888) - eared poorwill
               2 Nyctiphrynus yucatanicus (Hartert, 1892) - Yucatan poorwill
               3 Nyctiphrynus ocellatus (Tschudi, 1844) - ocellated poorwill
               4 Nyctiphrynus rosenbergi (E. Hartert, 1895)