Phylum Chordata Bateson, 1885 - chordates
   Class Aves Linnaeus, 1758 - birds see Subclass Aves Linnaeus, 1758
     Subclass Neornithes Gadow, 1893 see Clade Neornithes Gadow, 1893
       Superorder Neognathae Pycraft, 1900 see Cohort Neognathae Pycraft, 1900
         Order Cuculiformes Wagler, 1830 - cuckoos and plantain-eaters
           Family Cuculidae Vigors, 1825 - cuckoos
             Subfamily Couinae Gray - couas see Family Cuculidae Vigors, 1825
               Genus Coua Schinz, 1821
                 Coua caerulea (C. Linnaeus, 1766) - blue coua
                 Coua coquereli A. Grandidier, 1867 - Coquerel's coua
                 Coua cristata (C. Linnaeus, 1766) - crested coua
                 Coua cursor A. Grandidier, 1867 - running coua
                 †Coua delalandei (Temminck, 1827) - snail-eating coua
                 Coua gigas (Boddaert, 1783) - giant coua
                 Coua reynaudii Pucheran, 1845 - red-fronted coua
                 Coua ruficeps G.R. Gray, 1846 - red-capped coua
                 Coua serriana Pucheran, 1845 - red-breasted coua
                 Coua verreauxi A. Grandidier, 1867 - Verreaux's coua