Marinate chicken in store-bought barbecue sauce overnight and after the meat is grilled, load the pulled pieces into warm tortillas and top with fresh salsa and guacamole for a Mexican-inspired barbecue chicken dish.
Rinse chicken, pat dry, and place in a shallow dish or large zip-top freezer bag. Pour barbecue sauce over chicken; toss to coat evenly. Cover and refrigerate for 8 hours or overnight.
Remove chicken, reserving marinade. Sprinkle chicken with herbs, sea salt, and pepper, and place, skin side down, on grill. Grill, uncovered, on medium-low heat for 5 minutes or until slightly crispy, basting with reserved sauce. Turn chicken over, baste again, and cook 5 more minutes. Cover with grill lid, and cook 12 to 15 more minutes, basting several times. Turn chicken over, baste again, and grill, covered, for 12 to 15 more minutes or until cooked through (juices run clear).
Remove chicken, and let stand, loosely covered, for 5 minutes. Discard marinade. Remove meat from bones, and serve with tortillas, Simple Salsa Fresca, and Easy Guacamole. Or simply serve with additional barbecue sauce.