Caldo de Codorniz with Summer Corn, Zucchini, and Koshihikari Rice

Quail are upland game birds (so not poultry) and weigh 5 to 8 ounces (140 to 225 g) each. They have all dark meat, which is lean, has a delicate texture, and a mild “wild” flavor, and they are delicious roasted or grilled to medium-rare. Squab, also upland game birds, weigh about 1 pound (455 g) each. Their meat is dark, tender, and lean, with a flavor similar to duck, and, like quail, they are excellent roasted or grilled. In this recipe, I make a caldo (broth) that is richly flavored with