《太平广记·卷四百六十一·禽鸟二》
那只雌燕被猫捉住吃了，雄燕鸣叫着很久才飞走，不多时又和另一只雌燕配成一对回来了，还象从前一样地哺育雏燕。
其雌者为猫所搏食之，雄者啁啾，久之方去。即时又与一燕为匹而至，哺雏如故。
The male swallow mourned for a long time before flying away. Not long after that, it came back with another female swallow, and the pair continued to feed the baby swallows together as before.