《宋书·志·卷二十九》
阙赤乌，在 司武王时衔禾谷而至，兵不血刃而毖朝降服。
赤乌，周武王时衔谷至，兵不血刃而殷服。
A red crow appeared with a stalk of grain in its mouth during the reign of King Wu of the Zhou. Without bloodshed, it made the Bi Dynasty submit.