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 Passerimorphae Sibley et al., 1988
         Order Passeriformes Linnaeus, 1758
           Suborder Passeri see Suborder Passeres (C. Linnaeus, 1758) C. Linnaeus, 1766
             Parvorder Passerida (C. Linnaeus, 1758) Sibley et al., 1988
               Superfamily Sylvioidea
                 01 Family Sittidae Lesson, 1828 - nuthatches and wallcreeper
                 02 Family Certhiidae Leach, 1820 - treecreepers
                 03 Family Paridae Vigors, 1825 - tits, chickadees
                 04 Family Aegithalidae Reichenbach, 1850 - long-tailed tits
                 05 Family Hirundinidae Rafinesque, 1815 - swallows, martins
                 06 Family Regulidae Vigors, 1825
                 07 Family Pycnonotidae Gray, 1840 - bulbuls
                 08 Family Hypocoliidae Delacour & Amadon, 1949 see Subfamily Hypocoliinae
                 09 Family Cisticolidae Sundevall, 1872 - cisticolas and allies
                 10 Family Zosteropidae Bonaparte, 1853 - white eyes
                 11 Family Sylviidae Leach, 1820 - Old World warblers