《徐霞客游记·粤西游日记二十八》
到达城下后，把随行的人尽数杀了，每天早晨把周文韬悬挂在高竿上试鸟铣来恐吓他，逼他命令投降。
既抵城下，尽杀随行者，每晨以周悬竿上试铳恐之，逼之令降。
After arriving at the foot of the city, they killed all the people who followed along, and each morning they hung Zhou Wentao on a high pole to try out the bird's beak to scare him and force him to order a surrender.