Class Aves Linnaeus, 1758 - birds see Subclass Aves Linnaeus, 1758
   Subclass Neornithes Gadow, 1893 see Clade Neornithes Gadow, 1893
     Infraclass Neoaves Sibley et al., 1988 see Subcohort Neoaves Sibley et al., 1988
       Parvclass Passerae see Superorder Passerimorphae Sibley et al., 1988
         Superorder Apodimorphae see Order Apodiformes Peters, 1940
           Order Apodiformes Peters, 1940 - swifts
             Family Apodidae Hartert, 1897 - swifts
               Genus Apus Scopoli, 1777 - house swift
                 01 Apus alexandri E. Hartert, 1901 - Alexander's swift
                 02 Apus apus (C. Linnaeus, 1758) - common swift
                 03 Apus unicolor (Jardine, 1830) - plain swift
                 04 Apus niansae (Reichenow, 1887) - Nyanza swift
                 05 Apus pallidus (Shelley, 1870) - pallid swift
                 06 Apus barbatus (P.L. Sclater, 1865) - African swift
                 07 Apus berliozi Ripley, 1965 - Forbes-Watson's swift
                 08 Apus bradfieldi (Roberts, 1926) - Bradfield's swift
                 09 Apus balstoni (Bartlett, 1880) - Madagascar swift see Apus barbatus balstoni (Bartlett, 1880)
                 10 Apus pacificus (Latham, 1802) - fork-tailed swift
                 11 Apus acuticauda (Jerdon, 1864) - dark-rumped swift
                 12 Apus affinis (J.E. Gray, 1830) - little swift
                 13 Apus nipalensis (Hodgson, 1837) - house swift
                 14 Apus horus (Heuglin, 1869) - Horus swift
                 15 Apus toulsoni (Bocage, 1877) - Loanda swift see Apus horus horus (Heuglin, 1869)
                 16 Apus caffer (M.H.K. Lichtenstein, 1823) - white-rumped swift
                 17 Apus batesi (Sharpe, 1904) - Bates's swift