Subclass Avialae Gauthier, 1986 see Clade Avialae Gauthier 1986
   Infraclass Aves Linnaeus, 1758 see Subclass Aves Linnaeus, 1758
     Parvclass Neornithes Gadow, 1893 see Subclass Neornithes Gadow, 1893
       Cohort Neognathae Pycraft, 1900
         Subcohort Neoaves Sibley et al., 1988
           Division Terrestrornithes B.C. Livezey & R.L. Zusi, 2007
             Subdivision Dendrornithes Verheyen, 1961
               Section Anomalogonates Garrod, 1874
                 Subsection Pico-clamatores B.C. Livezey & R.L. Zusi, 2007
                   Superorder Passerimorphae Sibley et al., 1988
                     Order Passeriformes Linnaeus, 1758
                       Suborder Passeres (C. Linnaeus, 1758) C. Linnaeus, 1766
                         Infraorder Passerides (C. Linnaeus, 1758) see Suborder Passeres (C. Linnaeus, 1758) C. Linnaeus, 1766
                           Parvorder Passerida (C. Linnaeus, 1758) Sibley et al., 1988
                             Family Bombycillidae Swainson, 1831 - waxwings and allies