Neornithes Gadow, 1893 - living birds
   Neognathae Pycraft 1900 see Cohort Neognathae Pycraft, 1900
     Neoaves Sibley et al. 1988 see Subcohort Neoaves Sibley et al., 1988
       [Order] Passeriformes Linnaeus, 1758
         suboscines see Suborder Suboscines
           Tyranni see Suborder Tyranni
             Family Tyrannidae Vigors, 1825 - tyrant-flycatchers
               Genus Knipolegus Boie, 1826
                 01 Knipolegus striaticeps (d'Orbigny & Lafresnaye, 1837) - cinereous tyrant
                 02 Knipolegus hudsoni P.L. Sclater, 1872 - Hudson's black-tyrant
                 03 Knipolegus poecilocercus (Pelzeln, 1868) - Amazonian black-tyrant
                 04 Knipolegus signatus (Taczanowski, 1874) - Andean tyrant
                 05 Knipolegus cyanirostris (Vieillot, 1818) - blue-billed black-tyrant
                 06 Knipolegus poecilurus (P.L. Sclater, 1862) - rufous-tailed tyrant
                 07 Knipolegus orenocensis Berlepsch, 1884 - riverside tyrant
                 08 Knipolegus aterrimus Kaup, 1853 - white-winged black-tyrant
                 09 Knipolegus lophotes Boie, 1828 - crested black-tyrant
                 10 Knipolegus nigerrimus (Vieillot, 1818) - velvety black-tyrant