Where is Master Wu Bailing?

There is a saying in Beijing called "Wen Bailing, Wu thrush", which means that most of the civil servants at that time liked to raise larks, and the entry of Bailing in Jingkou was the best in the north. The so-called net-billed lark means that the lark can only call thirteen pieces, imitating thirteen kinds of bird calls, commonly known as thirteen sets. Most martial artists or military attaché s prefer to keep thrush birds because they need to get up early in the morning to walk them. Walking birds is actually a physical activity.