Preheat oven to 400 degrees.
Clean chicken and pat dry.
In a small bowl combine the garlic, olive oil, lemon zest, lemon juice, and rosemary and set aside.
Rub the lemon rind on the chicken parts. Season chicken to taste.
Use your fingers to gently loosen skin from the edges of the chicken parts, being careful not to tear skin. Using your fingers or a very small spoon, gently spread about a tablespoon of the mixture under skin of each piece of chicken. Spread the remaining mixture on the chicken.
Make sure the chicken is skin side up. Place the chicken in the oven.
Roast chicken 20 minutes, then baste with pan juices. Continue roasting and basting with pan juices every 15 minutes, 50-55 minutes total.