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] Falconiformes Sharpe, 1874
         Family Falconidae Vigors, 1824 - falcons, caracaras
           Subfamily Polyborinae Lafresnaye, 1839
             Genus Micrastur Gray, 1841
               Micrastur semitorquatus (Vieillot, 1817) - collared forest-falcon
                 1 Micrastur semitorquatus naso (Lesson, 1842)
                 2 Micrastur semitorquatus semitorquatus (Vieillot, 1817)