Legend has it that during the Qin Dynasty, there was a father and son surnamed Yan, the father's name was Yan Feng and the son's name was Yan Wu. The two men traveled south from Shandong to escape the chaos, and at first they worked for a rich man's family. When the rich man saw that Yan Feng was old and sick and had no oil to squeeze, he drove the father and son out of the house. Yan Wu and his son had to beg for a living, often without enough to eat, and often starved to death. Especially the elderly father, already seriously ill. The good thing is that Yan Wu is a filial son, and serves his father very well.
On one occasion, Yen Wu found a small rocky cave on his way to beg, which was small in size but warm in winter and cool in summer. Yan Wu was overjoyed, he cleaned up the cave, and father and son settled in the cave. Turning to the summer, the rocky cave mosquitoes gradually more, how to let the sick father from mosquito infestation sleep peacefully? Smart and filial Yan Wu has its own way. Every evening, Yan Wu always first back to the father outside the cave to cool, and then he returned to the cave, naked lying down, after a few hours, such as mosquitoes are satisfied after eating "retreat", Yan Wu only got up to the old father back to sleep in the cave.
These are the first time I've ever seen a mosquito in a cave, and I've never seen one before. These crows ate the mosquitoes, and then there were no more mosquitoes in the cave. When Yen Wu came back from the cave to ask for food, he would save a little food to feed the crows, and the two of them became good neighbors.
One day, at dawn, the crows were awakened by a cry of pain; it turned out that Yanwu's father had died. Yen Wu held his father's body in the cave door to cry to death ...... people died, but also into the ground, because there is no tool, Yen Wu can only hand digging burial father. Crows were touched by his filial piety, thousands of crows flew towards Yan Wu father and son, each crow has a white mourning circle around its neck. The crows circled around a few times and then flew in a northwesterly direction, and they articulated mud blocks from the yellow land 1 kilometer away and piled them up next to Yan Feng's side....... These crows, you a piece of mud, I a piece of mud, flew back and forth busily, and soon the crows' beaks were injured, and the blocks of mud were all stained with drips and dashes of crows' blood. By evening, the crows had built a tall, large grave.
It is said that later, after the death of the filial son Yan Wu, the crows buried him again by the side of his father's grave with the earth. People built a shrine here, called the Shrine of the Filial Son. In order to commemorate those crows who were injured by building graves, people called this area Woo Wound