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 Galliformes Temminck, 1820 - fowl
           Family Phasianidae Vigors, 1825 - turkeys, grouse, pheasants, partridges
             Subfamily Odontophorinae Gould, 1844 - American quail
               Genus Lophortyx Bonaparte, 1838 see Genus Callipepla Wagler, 1832
                 Lophortyx douglasii (Vigors, 1829) see Callipepla douglasii (Vigors, 1829)