Kingdom [Animalia] Linnaeus, 1758 - animals
   Subkingdom Metazoa Haeckel, 1874 see Kingdom Animalia Linnaeus, 1758
     Division Eumetazoa Butschli, 1910 see Subkingdom Eumetazoa Butschli, 1910
       Subdivision Bilateralia
         Phylum Chordata Bateson, 1885 - chordates
           Subphylum Vertebrata Cuvier, 1812 - vertebrates
             Class Aves Linnaeus, 1758 - birds see Subclass Aves Linnaeus, 1758
               Subclass Neornithes Gadow, 1893 see Clade Neornithes Gadow, 1893
                 Order Passeriformes Linnaeus, 1758
                   Suborder Oscines see Suborder Passeres (C. Linnaeus, 1758) C. Linnaeus, 1766
                     Family Pycnonotidae Gray, 1840 - bulbuls
                       Genus Pycnonotus Boie, 1826
                         01 Pycnonotus zeylanicus (J.F. Gmelin, 1789)
                         02 Pycnonotus melanoleucos (Eyton, 1839)
                         03 Pycnonotus atriceps (Temminck, 1822)
                         04 Pycnonotus jocosus (C. Linnaeus, 1758) - red-whiskered bulbul
                         05 Pycnonotus leucogenys (J.E. Gray, 1835)
                         06 Pycnonotus cafer (C. Linnaeus, 1766) - red-vented bulbul
                         07 Pycnonotus barbatus (Desfontaines, 1789)
                         08 Pycnonotus capensis (C. Linnaeus, 1766)
                         09 Pycnonotus nieuwenhuisii (Finsch, 1901)
                         10 Pycnonotus finlaysoni Strickland, 1844
                         11 Pycnonotus flavescens Blyth, 1845
                         12 Pycnonotus goiavier (Scopoli, 1786)
                         13 Pycnonotus gracilirostris (Strickland, 1844) see Andropadus gracilirostris Strickland, 1844
                         14 Pycnonotus tephrolaemus (Gray, 1862) see Andropadus tephrolaemus (G.R. Gray, 1862)