<==o PASSERAE [1798/8485]
   |-- CUCULIMORPHAE [30/143]
   `--+--o PSITTACIMORPHAE  [80/358]
      |  `--o PSITTACIFORMES  [80/358]
      |     `-- Psittacidae [80/358]
      `--+--+-- STRIGIMORPHAE [50/314]
         |  `--o APODIMORPHAE [128/422]
         |     |--o APODIFORMES [19/103]
         |     |  |-- Apodidae [18/99]
         |     |  `-- Hemiprocnidae [1/4]
         |     `--o TROCHILIFORMES [109/319]
         |        `--o Trochilidae [109/319]
         |           |-- Phaethornithinae [4/29]
         |           `-- Trochilinae [105/290]
         `--o PASSERMORPHAE [1510/7248]
            |-- PASSERIFORMES [1161/5712]
            `--+--o COLUMBIFORMES [42/313]
               |  |-- Raphidae [2/3]
               |  `-- Columbidae [40/310]
               `--+-- GRUIFORMES [53/196]
                  `-- CICONIIFORMES [254/1027]


Reference(s):

    Sibley, C. G. & Ahlquist, J. E., 1990:
Phylogeny and classification of birds. A study in molecular evolution.
--Yale University Press, New Haven  & London, pp. xxii-976