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 Piciformes Meyer & Wolf, 1810 - scansorial birds
                   Superfamily Picoidea Vigors, 1825
                     Family Picidae Vigors, 1825 - woodpeckers
                       Subfamily Picinae Vigors, 1825 - true woodpeckers
                         Genus Melanerpes Swainson, 1832
                           1 Melanerpes erythrocephalus (C. Linnaeus, 1758) - red-headed woodpecker
                           2 Melanerpes formicivorus (Swainson, 1827) - acorn woodpecker