Grouse have pretty much the same proportion of white / dark meat as chickens do, but they don't taste like chicken. The breast of young grouse is tender, with a mild gamey taste. The legs and the rest of the bird have a more pronounced gamey flavour.
Is grouse good to eat?
You can eat grouse fresh or freeze it. ... One breast filet is enough for a single serving, though many folks so enjoy the flavor of grouse that a whole breast isn't too much. Grouse is very lean white meat with a delicate flavor. You can use it in just about any chicken recipe, but take care not to overcook.
What tastes better grouse or pheasant?
Pheasants being the semi-wild cousins of chickens, and quail, partridges and chukars all being accessible from a taste standpoint. The notable exception is the ruffed grouse, which has a strong flavor that, in my mind, makes it far superior to pheasant or quail, which can be bland.