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] Ciconiiformes Bonaparte, 1854
         Family Threskiornithidae Richmond, 1917 - ibises and spoonbills
           Subfamily Threskiornithinae Richmond, 1917 see Family Threskiornithidae Richmond, 1917
             Genus Plegadis Kaup, 1829
               1 Plegadis falcinellus (Linnaeus, 1766) - glossy ibis
               2 Plegadis chihi (Vieillot, 1817) - white-faced ibis
               3 Plegadis ridgwayi (Allen, 1876) - Puna ibis