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 Threskiornis Gray, 1842
               1 Threskiornis aethiopicus (Latham, 1790) - sacred ibis
               2 Threskiornis melanocephalus (Latham, 1790) - black-headed ibis
               3 Threskiornis molucca (Cuvier, 1829) - Australian ibis
               4 Threskiornis spinicollis (Jameson, 1835) - straw-necked ibis