Kingdom [Animalia] Linnaeus, 1758 - animals
   Subkingdom Metazoa Haeckel, 1874 see Kingdom Animalia Linnaeus, 1758
     Division Eumetazoa Butschli, 1910 see Subkingdom Eumetazoa Butschli, 1910
       Subdivision Bilateralia
         Phylum Chordata Bateson, 1885 - chordates
           Subphylum Vertebrata Cuvier, 1812 - vertebrates
             Class Aves Linnaeus, 1758 - birds see Subclass Aves Linnaeus, 1758
               Subclass Neornithes Gadow, 1893 see Clade Neornithes Gadow, 1893
                 Order Apodiformes Peters, 1940 - swifts
                   Family Hemiprocnidae Oberholser, 1906 - treeswifts
                     Genus Hemiprocne Nitzsch, 1829
                       1 Hemiprocne longipennis (Rafinesque, 1802) - grey-rumped treeswift
                       2 Hemiprocne comata (Temminck, 1824) - whiskered treeswift
                       3 Hemiprocne mystacea (Lesson & Garnot, 1827) - moustached treeswift