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 [Psittaciformes] Wagler, 1830 [monotypic] - parrots
         Family Psittacidae Illiger, 1811 - cockatoos and parrots
           Subfamily Micropsittinae [monotypic]
             Genus Micropsitta Lesson, 1831
               Micropsitta keiensis (Salvadori, 1876) - yellow-capped pygmy-parrot
                 1 Micropsitta keiensis keiensis (Salvadori, 1875)
                 2 Micropsitta keiensis chloroxantha Oberholser, 1917
                 3 Micropsitta keiensis viridipectus (Rothschild, 1911)