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 Tetraoninae Vigors - grouse see Family Tetraonidae Vigors, 1825
               Genus Canachites Stejneger, 1885 [monotypic] see Genus Falcipennis Elliot, 1864
                 [Canachites canadensis] (Linnaeus, 1758) - spruce grouse see Falcipennis canadensis (Linnaeus, 1758)
                   1 Canachites canadensis osgoodi Bishop, 1900 see Falcipennis canadensis osgoodi (Bishop, 1900)
                   2 Canachites canadensis atratus Grinnell, 1910 see Falcipennis canadensis atratus (Grinnell, 1910)
                   3 Canachites canadensis isleibi (Dickerman & Gustafson, 1996) see Falcipennis canadensis isleibi Dickerman & Gustafson, 1996
                   4 Canachites canadensis canadensisᵀ (Linnaeus, 1758) see Falcipennis canadensis canadensis (Linnaeus, 1758)
                   5 Canachites canadensis canace (Linnaeus, 1766) see Falcipennis canadensis canace (Linnaeus, 1766)
                   6 Canachites canadensis franklinii (Douglas, 1829) see Falcipennis canadensis franklinii (Douglas, 1829)