DCHP-1 Online
rock grouse Obs. 
a chubby, partridge-like fowl, Lagopus rupestris, of the Barren Grounds.
See also: rock ptarmigan
- 1823 Captain Sabine has distinguished the Rock Grouse from the Ptarmigan as a distinct species.
- 1853 The habits of the "rock" and "willow" grouse are very similar.
- 1959 Rock Ptarmigan [is also called] rock grouse ("Hudson Bay"). . . .
- 1823 Captain Sabine has distinguished the Rock Grouse from the Ptarmigan as a distinct species.