In a small bowl, combine cumin, cayenne pepper, lime zest, cilantro, garlic and salt and pepper. Slide your fingers under the skin of the hens to loosen. Spread herb mixture inside and under the skin of the hens. Brush the skin with melted butter and lightly season with salt and pepper. Tie the hens' legs with kitchen twine. Place hens in a roasting pan.
Roast hens until golden and cooked through about 35 to 45 minutes or until temperature reaches 175 degrees F. After roasting remove the hens out of the oven and let stand for 10 minutes.