Place hens on rack of shallow roasting pan. Spread 1 teaspoon butter over each hen and season to taste with salt and pepper. Roast in 325-degree oven for 30 minutes. Combine orange juice, honey mustard, honey, vegetable oil, curry powder and ginger in a cup. Baste the hens generously with orange juice mixture after 30 minutes of roasting. Hens shold roast a total of 1 hour or until breast registers 170 degrees on an instant-read thermometer. Remove hens from oven. Let stand 5 minutes before serving.