What kind of festival is March 3 of Baoting Miao nationality?

Li nationality in Shangsi Festival: March 3rd is called "Fu Nian Fu", which is a festival to wish "Mountain Orchid" (mountain dry valley) and harvest hunting, and it is also a day for young men and women to communicate freely. People call it love day. There is a beautiful legend about its origin. It is said that a long time ago, Qizhiling area suffered a rare drought, and people lived like days. One morning, a young man named Yayin told everyone that he dreamed of a lark. In order to get rid of this disaster, he had to climb to the top of Wuzhishan and blow his nose to trap him. Yabu volunteered to climb to the top of Wuzhishan, where he played his beloved nose flute. It blew for three days and nights until a lark flew out of the valley. ADB is scrambling to catch up. He chased a hill. Finally, ADB saw that the lark had become a very beautiful Li girl. The girl promised to go to earth with ADB to save the disaster. After the drought was lifted, I didn't expect it, but I angered the Lord. He sent his servant to catch Miss Lark. At this time, ADB came, and they hid in a cave. When the master ordered the servants to burn to the cave, suddenly dark clouds rolled, thunder rumbled, rocks cracked, and landslides broke out, and the evil master and servants were killed. ADB and Miss Bailing became a pair of birds and flew into the sky. The villagers heard the news, looked at them, sang and danced excitedly, and wished them happiness. This day is the third day of the third lunar month, and has since become a traditional festival of the Li family.