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 Bonasa Stephens, 1819 [monotypic]
                 Bonasa umbellus (Linnaeus, 1766) - ruffed grouse
                   01 Bonasa umbellus yukonensis Grinnell, 1916
                   02 Bonasa umbellus umbelloides (Douglas, 1829)
                   03 Bonasa umbellus labradorensis Ouellet, 1990
                   04 Bonasa umbellus castanea Aldrich & Friedmann, 1943
                   05 Bonasa umbellus affinis Aldrich & Friedmann, 1943
                   06 Bonasa umbellus obscura Todd, 1947
                   07 Bonasa umbellus sabini (Douglas, 1829)
                   08 Bonasa umbellus brunnescens Conover, 1935
                   09 Bonasa umbellus togata (Linnaeus, 1766)
                   10 Bonasa umbellus mediana Todd, 1940
                   11 Bonasa umbellus phaia Aldrich & Friedmann, 1943
                   12 Bonasa umbellus incana Aldrich & Friedmann, 1943
                   13 Bonasa umbellus monticola Todd, 1940
                   14 Bonasa umbellus umbellusᵀ (Linnaeus, 1766)