Neornithes Gadow, 1893 - living birds
   Neognathae Pycraft 1900 see Cohort Neognathae Pycraft, 1900
     Galloanserae Sibley, Ahlquist & Monroe Jr., 1988 see Subcohort Galloanserae Sibley, Ahlquist & Monroe Jr., 1988
       [Order] Galliformes Temminck, 1820 - fowl
         phasianoids see Superfamily Phasianoidea Vigors, 1825
           Family Odontophoridae (Gould, 1844) - New World quails see Subfamily Odontophorinae Gould, 1844
             Genus Oreortyx Baird, 1858 [monotypic]
               Oreortyx pictus (Douglas, 1829) - mountain quail
                 1 Oreortyx pictus pictusᵀ (Douglas, 1829)
                 2 Oreortyx pictus plumifer (Gould, 1837)
                 3 Oreortyx pictus russelli Miller, 1946
                 4 Oreortyx pictus eremophilus van Rossem, 1937
                 5 Oreortyx pictus confinis Anthony, 1889