After Lerner & Mindell, 2005, Lerner, Klaver & Mindell, 2008, with species from Sibley & Monroe, 1990, and Peterson, 2002-2004, with Finnish vernacular names from Lokki, Jännes & Nikander, 1992

<==o Accipitridae (haukat)
   |?- †Horusornis vianeyliaudae Mourer-Chauviré, 1991 [Horusornithidae Mourer-Chauviré, 1991]
   |--o †Aquilavus Lambrecht, 1933
   |  |-- †A. boulei (Gaillard, 1939) [Dynamopteryx boulei Gaillard, 1939]
   |  |-- †A. hypogaeus
   |  `-- †A. corroyi
   |-- Elaninae (Elanine Kites; liitohaukat)
   `--+--+--o Polyboroides A. Smith, 1829 [Polyboroidinae] (Harriet hawks; rosvohaukat)
      |  |  |-- P. typus (Scopoli, 1786) (African Harrier-Hawk; rosvohaukka)
      |  |  `-- P. radiatus Smith, 1829 (Madagascar Harrier-Hawk; (madagaskarinrosvohaukka)
      |  `--+-- Gypaetinae Vieillot, 1816 (bald old world vultures; kaljut korppikotkat)
      |     `-- Perninae (Pernine Kites; mehiläishaukat)
      `--+--+-- Circaetinae (Snake eagles; käärmekotkat)
         |  `-- Aegypiinae Sclater, 1924 (Feathered Old World vultures; höyhenikkäät korppikotkat)
         `--+--o Harpiinae (Harpy eagles; harpyijat)
            |  |-- Harpyopsis novaeguineae Salvadori, 1875 (papuanharpyija)
            |  `--+-- Harpia harpyja (Linnaeus, 1758) Vieillot, 1816 (harpyija)
            |     `-- Morphnus guianensis (Daudin, 1800) Dumont, 1816 (pikkuharpyija)
            `--+-- Aquilinae Gadow, 1893 (booted eagles, hawk-eagles; kotkat)
               `--+--+--o Melierax G.R. Gray, 1840 [Micronisus] [Melieraxinae] (Chanting goshawks; lauluhaukat)
                  |  |  |-- M. metabates Heuglin, 1861 (afrikanlauluhaukka)
                  |  |  |-- M. canorus (Thunberg,1799) (kapinlauluhaukka)
                  |  |  |-- M. poliopterus Cabanis, 1868 (somalinlauluhaukka)
                  |  |  `-- M. gabar (Daudin, 1800) [Micronisus gabar] (pikkulauluhaukka)
                  |  `--+-- Circus Lacépède, 1799 [Circinae] (Marsh Harriers; suohaukat)
                  |     `-- Accipitrinae (Sparrowhawks & Chanting goshawks)
                  `--+-- Milvinae (Milvine Kites; haarahaukat)
                     `--+-- Haliaeetinae (Sea and Fish eagles; meri- ja kalakotkat)
                        `-- Buteoninae Vigors, 1824 (Bussards; hiirihaukat)

After Olson, 1985, Feduccia, 1980, 1996, and Sibley & Monroe, 1990

<==o Accipitridae
   |?- †Horusornis
   |-- †Aquilavus
   |-- Elaninae (liitohaukat)
   |-- Perninae (mehiläishaukat)
   |-- Circinae (suohaukat)
   |--+-- Buteoninae Vigors, 1824 (hiirihaukat)
   |  `-- Gypaetinae Vieillot, 1816 [Aegypinae Sclater, 1924] (Old World vultures; korppikotkat)
   |-- Circaetinae (käärmekotkat)
   `-- Milvinae (haarahaukat)

Reference(s):