Preheat the oven to 450 degrees F.

Quarter the ducks. Season the duck with salt and pepper. Rub the duck with the cane syrup. In a saute pan, heat 2 tablespoons olive oil. When the oil is hot, sear the duck, skin side down, for about 5 minutes. Remove from the heat and set aside. Place the celery and garlic on a wire rack fitted over a roasting pan. 

In a mixing bowl, toss the baby root vegetables, onions, remaining olive oil, salt, pepper, cayenne, and dried herbs together. Spread the vegetables evenly over the celery and garlic. Place the seared duck pieces on top of the vegetables.

Pour the stock and sherry in the bottom of the roasting pan. Roast for 45  minutes to 1 hour, or until the duck is tender.

Remove the duck from the oven. Mound the vegetables in the center of the platter. Lay the duck over the vegetables. Spoon any remaining sauce over the duck. Garnish with chives. Serve family style