Grouse \Grouse\, v. i.
   1. To seek or shoot grouse.
      
[1913 Webster]


   2. To complain or grumble; as, employees grousing about their
      incompetent boss. [informal]
      [PJC]

Grouse \Grouse\ (grous), n. sing. & pl. [Prob. after the analogy
   of mouse, mice, fr. the earlier grice, OF. griesche meor hen:
   cf. F. piegri[`e]che shrike.] (Zool.)
   Any of the numerous species of gallinaceous birds of the
   family {Tetraonidae}, and subfamily {Tetraoninae},
   inhabiting Europe, Asia, and North America. They have plump
   bodies, strong, well-feathered legs, and usually mottled
   plumage. The group includes the ptarmigans ({Lagopus}),
   having feathered feet.
   
[1913 Webster]


   Note: Among the European species are the red grouse ({Lagopus  Scoticus}) and the hazel grouse ({Bonasa betulina}).
         See {Capercaidzie}, {Ptarmigan}, and {Heath grouse}.
         Among the most important American species are the
         ruffed grouse, or New England partridge ({Bonasa  umbellus}); the sharp-tailed grouse ({Pediocaetes  phasianellus}) of the West; the dusky blue, or pine
         grouse ({Dendragapus obscurus}) of the Rocky Mountains;
         the Canada grouse, or spruce partridge ({D.  Canadensis}). See also {Prairie hen}, and {Sage cock}.
         The Old World sand grouse ({Pterocles}, etc.) belong to
         a very different family. See {Pterocletes}, and {Sand  grouse}.
         
[1913 Webster]