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
             Passeroidea
               Family Parulidae Wetmore et al., 1947 - New World warblers
                 Genus Seiurus Swainson, 1827
                   1 Seiurus aurocapilla (C. Linnaeus, 1766)
                   2 Seiurus noveboracensis (J.F. Gmelin, 1789) - northern waterthrush
                   3 Seiurus motacilla (Vieillot, 1809) - louisiana waterthrush