Tuscan Turkey Roulade

Name: Tuscan Turkey Roulade
Ingredients: 2 tablespoons fennel seeds, coarsely ground; 2 teaspoons juniper berries, coarsely ground; Kosher salt and freshly ground black pepper; 6 ounces pancetta, cut into 1/2-inch pieces; 1 tablespoon finely chopped fresh rosemary; 1/2 teaspoon crushed red pepper flakes; 3 cloves garlic, minced; Finely grated zest of 1 lemon; One 12- to 14-pound turkey, boned, leaving the drumstick bones in and the wings on (see Cook's Note); Extra-virgin olive oil, for brushing