In a medium sized baking dish, grate the peel from 1/2 the lemon, squeeze out all the juice (about 1/4 cup) and add to peel with the oregano, garlic, oil, salt and pepper. Stir until mixed.
Remove skin from chicken pieces and discard. Coat chicken pieces with the lemon mixture and arrange, (bone side up if appropriate), in the baking dish. Cover dish and bake for 20 minutes. Turn and baste chicken.
Reduce heat to 200 degrees C and bake uncovered, basting every 10 minutes, for about 30 more minutes. Serve chicken with pan juices.