[If] he performed melikah with the left hand, or at night, or he slaughtered a non-sacred [bird] inside [the Courtyard], or offerings outside [it] — [these] do not contaminate with tumah via the throat. [If] he performed melikah with a knife, [or] he performed melikah on a non-sacred [bird] inside, [or on] offerings outside, [or on] turtledoves whose time has not arrived, or young pigeons whose time has passed, [or on a bird] whose wing has atrophied, or whose eye was blinded, or whose foot was cut off — [they] contaminate with tumah via the throat. This is the rule: Anything whose disqualification is in the Holy does not contaminate with tumah via the throat; [but] if its disqualification is not in the Holy, it contaminates with tumah via the throat. All disqualified persons who perform melikah, their melikah is not valid, but [the birds] do not contaminate with tumah via the throat.