ruffed grouse(n = noun.animal) bonasa umbellus, partridge - valued as a game bird in eastern United States and Canada;
is a kind of grouse
is a member of bonasa, genus bonasa

asian black grouse, black grouse, european black grouse, grouse, grouse whortleberry, pin-tailed grouse, prairie grouse, red grouse, ruffed, sage grouse, sand grouse, sharp-tailed grouse, spruce grouse