Phylum Chordata Bateson, 1885 - chordates
Subphylum Vertebrata Cuvier, 1812 - vertebrates
Class Aves Linnaeus, 1758 - birds
see Subclass Aves Linnaeus, 1758
Order Passeriformes Linnaeus, 1758
Family Acanthizidae Bonaparte, 1854 - thornbills, gerygones
Family Aegithalidae Reichenbach, 1850 - long-tailed tits
Family Alaudidae Vigors, 1825 - larks
Family Artamidae Vigors, 1825 - woodswallows
Family Atrichornithidae Stejneger, 1885 - scrubbirds
Family Bombycillidae Swainson, 1831 - waxwings and allies
Family Callaeidae Sundevall, 1836
see Family Callaeatidae Sundevall, 1836
Family Campephagidae Vigors, 1825 - cuckoo-shrikes
Family Certhiidae Leach, 1820 - treecreepers
Family Cinclidae Sundevall, 1836 - dippers
Family Climacteridae de Selys Longchamps, 1839 - Australian treecreepers
Family Coerebidae - bananaquit
Family Conopophagidae Sclater & Salvin, 1873 - gnateaters
Family Corvidae Vigors, 1825 - crows, jays
Family Cotingidae Bonaparte, 1849 - cotingas
Family Cracticidae Chenu & Des Murs, 1853 - butcher birds
Family Dendrocolaptidae - woodcreepers
Family Dicaeidae Bonaparte, 1853 - flowerpeckers
Family Dicruridae Vigors, 1825 - drongos
Family Drepanididae - Hawaiian honeycreepers
see Tribe Drepanidini
Family Dulidae Sclater, 1862 - palmchat
Family Emberizidae Vigors, 1825 - buntings, American sparrows and allies
Family Eopsaltridae
see Family Eopsaltriidae
Family Estrildidae Bonaparte, 1850 - waxbills, grass finches, munias and allies
Family Eurylaimidae - broadbills
Family Formicariidae Gray, 1840 - ant-thrushes and antpittas
Family Fringillidae Leach, 1820 - finches and Hawaiian honeycreepers
Family Furnariidae Gray, 1840 - ovenbirds
Family Grallinidae Mayr, 1950
Family Hirundinidae Rafinesque, 1815 - swallows, martins
Family Icteridae Vigors, 1825 - New World blackbirds
Family Irenidae Jerdon, 1863 - fairy-bluebirds
Family Laniidae Rafinesque, 1815 - shrikes
Family Maluridae Swainson, 1831 - Australasian wrens
Family Meliphagidae Vigors, 1825 - honeyeaters
Family Menuridae Lesson, 1828 - lyrebirds
Family Mimidae Bonaparte, 1853 - mockingbirds, thrashers
Family Monarchidae Bonaparte, 1854 - monarchs
Family Motacillidae Horsfield, 1821 - wagtails, pipits
Family Muscicapidae Fleming, 1822 - chats and Old World flycatchers
Family Nectariniidae Vigors, 1825 - sunbirds
Family Oriolidae Vigors, 1825 - orioles and figbirds
Family Orthonychidae Gray, 1840 - logrunners
Family Oxyruncidae
see Family Cotingidae Bonaparte, 1849
Family Pachycephalidae Swainson, 1831 - whistlers
Family Panuridae Des Murs, 1860
Family Paradisaeidae Vigors, 1825 - manucodes and birds of paradise
Family Paridae Vigors, 1825 - tits, chickadees
Family Parulidae Wetmore et al., 1947 - New World warblers
Family Philepittidae - asities
Family Phytotomidae
see Subfamily Phytotominae
Family Picathartidae Lowe, 1938 - bald crows
Family Pipridae Rafinesque, 1815 - manakins
Family Pittidae Swainson, 1831 - pittas
Family Platysteiridae Mathews, 1922 - shrike-flycatchers, wattle-eyes and batises
Family Ploceidae Sundevall, 1836 - weavers, sparrows
Family Polioptilidae Baird, 1858 - gnatcatchers
Family Prunellidae Richmond, 1908 - accentors
Family Ptilonorhynchidae Gray, 1841 - bowerbirds
Family Pycnonotidae Gray, 1840 - bulbuls
Family Remizidae Olphe-Galliard, 1891 - penduline tits
Family Rhabdornithidae Greenway, 1967 - Philippine creepers
Family Rhinocryptidae Wetmore, 1930 - tapaculos
Family Sittidae Lesson, 1828 - nuthatches and wallcreeper
Family Sturnidae Rafinesque, 1815 - starlings
Family Sylviidae Leach, 1820 - Old World warblers
Family Timaliidae Vigors & Horsfield, 1827 - babblers and parrotbills
Family Troglodytidae Swainson, 1832 - wrens
Family Turdidae Rafinesque, 1815 - thrushes
Family Tyrannidae Vigors, 1825 - tyrant-flycatchers
Family Vangidae Swainson, 1832 - vangas
Family Vireonidae Swainson, 1837 - vireos and allies
Family Xenicidae
see Family Acanthisittidae Sundevall, 1872
Family Zosteropidae Bonaparte, 1853 - white eyes