def get_variable_days(self, year):
days = super(BattleStirlingBridge, self).get_variable_days(year)<EOL>days.append((<EOL>self.get_nth_weekday_in_month(year, <NUM_LIT:9>, MON, <NUM_LIT:2>),<EOL>"<STR_LIT>"<EOL>))<EOL>return days<EOL>
Add Battle of Stirling Bridge holiday (Second Monday of September)