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] Apodiformes Peters, 1940 - swifts
         Family Hemiprocnidae Oberholser, 1906 [monotypic] - treeswifts
           Genus Hemiprocne Nitzsch, 1829
             1 Hemiprocne coronata (Tickell, 1833) - crested treeswift
             2 Hemiprocne longipennis (Rafinesque, 1802) - grey-rumped treeswift
             3 Hemiprocne comata (Temminck, 1824) - whiskered treeswift
             4 Hemiprocne mystacea (Lesson & Garnot, 1827) - moustached treeswift