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 Falconinae Vigors, 1824 - falcons
             Genus Microhierax Sharpe, 1874
               Microhierax caerulescens (Linnaeus, 1758) - collared falconet
                 1 Microhierax caerulescens caerulescens (Linnaeus, 1758)
                 2 Microhierax caerulescens burmanicus Swann, 1920