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 Coraciae see Order Coraciiformes Forbes, 1884
         Superorder Coraciimorphae see Order Coraciiformes Forbes, 1884
           Order Trogoniformes Wetmore & Miller, 1926 - trogons
             Family Trogonidae Lesson, 1828 - trogons
               Subfamily Trogoninae
                 Tribe Harpactini - Asian trogons
                   Genus Harpactes Swainson, 1833
                     01 Harpactes reinwardtii (Temminck, 1822) - blue-tailed trogon
                     02 Harpactes fasciatus (Pennant, 1769) - Malabar trogon
                     03 Harpactes kasumba (Raffles, 1822) - red-naped trogon
                     04 Harpactes diardii (Temminck, 1832) - Diard's trogon
                     05 Harpactes ardens (Temminck, 1826) - Philippine trogon
                     06 Harpactes whiteheadi Sharpe, 1888 - Whitehead's trogon
                     07 Harpactes orrhophaeus (Cabanis & Heine, 1863) - cinnamon-rumped trogon
                     08 Harpactes duvaucelii (Temminck, 1824) - scarlet-rumped trogon
                     09 Harpactes oreskios (Temminck, 1823) - orange-breasted trogon
                     10 Harpactes erythrocephalus (Gould, 1834) - red-headed trogon
                     11 Harpactes wardi (Kinnear, 1927) - Ward's trogon