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 Phasianidae Vigors, 1825 - turkeys, grouse, pheasants, partridges
             Subfamily Perdicinae Bonaparte, 1838
               Genus Ammoperdix Gould, 1851
                 Ammoperdix heyi (Temminck, 1825) - sand partridge
                   1 Ammoperdix heyi heyiᵀ (Temminck, 1825)
                   2 Ammoperdix heyi nicolli Hartert, 1919
                   3 Ammoperdix heyi cholmleyi Ogilvie-Grant, 1897
                   4 Ammoperdix heyi intermedius Hartert, 1917