《宋书·志·卷二十九》
明帝泰始二年六月，白燕出现于零陵，捕获献给朝廷。
明帝泰始二年六月，白燕见零陵，获以献。
In June of the second year of the Taishi era under Emperor Ming, a white swallow appeared in Lingling. It was captured and presented to the imperial court.