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 Tyranni - suboscines
               Infraorder Tyrannides Sibley et al., 1988
                 Parvorder Tyrannida Wetmore & Miller, 1926
                   Family Tyrannidae Vigors, 1825 - tyrant-flycatchers
                     Subfamily Tyranninae see Family Tyrannidae Vigors, 1825
                       Genus Elaenia Sundevall, 1836
                         01 Elaenia martinica (C. Linnaeus, 1766) - Caribbean elaenia
                         02 Elaenia flavogaster (Thunberg, 1822) - yellow-bellied elaenia
                         03 Elaenia spectabilis Pelzeln, 1868 - large elaenia
                         04 Elaenia ridleyana Sharpe, 1888 - Noronha elaenia
                         05 Elaenia albiceps (d'Orbigny & Lafresnaye, 1837) - white-crested elaenia
                         06 Elaenia parvirostris Pelzeln, 1868 - small-billed elaenia
                         07 Elaenia strepera Cabanis, 1883 - slaty elaenia
                         08 Elaenia mesoleuca (Deppe, 1830) - olivaceous elaenia
                         09 Elaenia gigas P.L. Sclater, 1871 - mottle-backed elaenia
                         10 Elaenia pelzelni Berlepsch, 1907 - brownish elaenia
                         11 Elaenia cristata Pelzeln, 1868 - plain-crested elaenia
                         12 Elaenia ruficeps Pelzeln, 1868 - rufous-crowned elaenia
                         13 Elaenia chiriquensis Lawrence, 1865 - lesser elaenia
                         14 Elaenia frantzii Lawrence, 1865 - mountain elaenia
                         15 Elaenia obscura (d'Orbigny & Lafresnaye, 1837) - highland elaenia
                         16 Elaenia dayi Chapman, 1929 - great elaenia
                         17 Elaenia pallatangae P.L. Sclater, 1861 - Sierran elaenia
                         18 Elaenia fallax P.L. Sclater, 1861 - Greater Antillean elaenia