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
           "Corvida" - corvidans see Parvorder Corvida Sibley et al., 1988
             Family Vireonidae Swainson, 1837 - vireos and allies
               Genus Vireo Vieillot, 1808
                 01 Vireo brevipennis (P.L. Sclater, 1858)
                 02 Vireo griseus (Boddaert, 1783) - white-eyed vireo
                 03 Vireo crassirostris (H. Bryant, 1859) - thick-billed vireo
                 04 Vireo pallens Salvin, 1863
                 05 Vireo bairdi Ridgway, 1885
                 06 Vireo caribaeus Bond & Meyer de Schauensee, 1942
                 07 Vireo modestus P.L. Sclater, 1861
                 08 Vireo gundlachii Lembeye, 1850
                 09 Vireo latimeri S.F. Baird, 1866 - puerto rican vireo
                 10 Vireo nanus (Lawrence, 1875)
                 11 Vireo bellii Audubon, 1844 - Bell's vireo
                 12 Vireo atricapilla Woodhouse, 1852
                 13 Vireo nelsoni Bond, 1936
                 14 Vireo vicinior Coues, 1866 - gray vireo
                 15 Vireo osburni (P.L. Sclater, 1861)
                 16 Vireo flavifrons Vieillot, 1808 - yellow-throated vireo
                 17 Vireo plumbeus Coues, 1866
                 18 Vireo cassinii Xantús de Vesey, 1858
                 19 Vireo solitarius (A. Wilson, 1810) - solitary vireo
                 20 Vireo carmioli S.F. Baird, 1866
                 21 Vireo masteri Salaman & Stiles, 1996
                 22 Vireo huttoni Cassin, 1851 - hutton's vireo
                 23 Vireo hypochryseus P.L. Sclater, 1862
                 24 Vireo gilvus (Vieillot, 1808) - warbling vireo
                 25 Vireo leucophrys (Lafresnaye, 1844)
                 26 Vireo philadelphicus (Cassin, 1851) - philadelphia vireo
                 27 Vireo olivaceus (C. Linnaeus, 1766) - red-eyed vireo
                 28 Vireo gracilirostris Sharpe, 1890
                 29 Vireo flavoviridis (Cassin, 1851)
                 30 Vireo altiloquus (Vieillot, 1808) - black-whiskered vireo
                 31 Vireo magister (Lawrence, 1871)