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 Nyctibiidae Chenu & Des Murs, 1851 [monotypic] - potoos
           Genus Nyctibius Vieillot, 1816
             Nyctibius aethereus (Wied, 1820) - long-tailed potoo
               1 Nyctibius aethereus chocoensis Chapman, 1921
               2 Nyctibius aethereus longicaudatus (Spix, 1825) - long-tailed potoo
               3 Nyctibius aethereus aethereus (Wied-Neuwied, 1820) - large-tailed potoo