Preheat oven to 350°F.

In a large bowl, combine the chicken, olives, and prunes. In another small bowl, mix together the oil, vinegar, garlic, oregano, salt, pepper, and bay leaf. Pour the spice mixture over the chicken and massage it into the drumsticks, making sure they are entirely coated.

Place the chicken in a baking dish and pour the wine around it. Bake it uncovered for one hour, basting it frequently. Garnish with parsley before serving.