03Spread remaining rosemary and thyme sprigs on a baking sheet or in a low-sided roasting pan. Lay quail on top of herbs, breast-side down. Roast for about 15 minutes, until puffed and lightly browned.04Turn birds breast-side up and surround with roasted onions and grape clusters. Continue roasting for 10 minutes more. If necessary, put birds under the broiler to crisp the skin. Let rest 10 minutes and serve.