The terms chicken drumstick and chicken legs can be used interchangeably.  Every leg can vary in weight significantly, depending on the size of the bird. An Adult serving is usually 2 per hungry adult. However, usually 1 drumstick for small children or little eaters is usually enough. A chicken leg quarter is the chicken drumstick, including the thigh of the chicken. These are much larger. Standard adult serving is one chicken leg quarter. If you decide to use a leg quarter for this tea smoked chicken recipe, it will take longer to cook.