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 Milvago Spix, 1824
               Milvago chimachima (Vieillot, 1816) - yellow-headed caracara
                 1 Milvago chimachima cordata Bangs & Penard, 1918
                 2 Milvago chimachima chimachima (Vieillot, 1816)