Class Aves Linnaeus, 1758 - birds see Subclass Aves Linnaeus, 1758
   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 Passeroidea
                   Family Passeridae Rafinesque, 1815 - sparrows, snowfinches and allies
                     Subfamily Motacillinae Bonaparte, 1831 see Family Motacillidae Horsfield, 1821
                       Genus Motacilla Linnaeus, 1758
                         Motacilla flava Linnaeus, 1758 - yellow wagtail
                           01 Motacilla flava flavissima (Blyth, 1834)
                           02 Motacilla flava flavaᵀ Linnaeus, 1758
                           03 Motacilla flava cinereocapilla Savi, 1831
                           04 Motacilla flava leucocephala (Prjevalsky, 1887)
                           05 Motacilla flava lutea (Gmelin,SG, 1774)
                           06 Motacilla flava feldegg Michahelles, 1830
                           07 Motacilla flava melanogrisea (Homeyer, 1878)
                           08 Motacilla flava thunbergi Billberg, 1828
                           09 Motacilla flava taivana
                           10 Motacilla flava simillima E. Hartert, 1905
                           11 Motacilla flava tschutschensis Gmelin, 1789