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] Passeriformes Linnaeus, 1758
         oscines see Suborder Oscines
           Passerida - passeridans see Parvorder Passerida (C. Linnaeus, 1758) Sibley et al., 1988
             Sylvioidea
               Family Aegithalidae Reichenbach, 1850 - long-tailed tits
                 Genus Aegithalos Hermann, 1804
                   1 Aegithalos caudatus (C. Linnaeus, 1758)
                   2 Aegithalos leucogenys (F. Moore, 1854) - white-cheeked tit
                   3 Aegithalos concinnus (Gould, 1855)
                   4 Aegithalos niveogularis (F. Moore, 1855)
                   5 Aegithalos iouschistos (Blyth, 1844)
                   6 Aegithalos bonvaloti (Oustalet, 1891)
                   7 Aegithalos fuliginosus (J. Verreaux, 1870)