What is the pigeon whistle

The sound of pigeon whistle made of the whistle packed on the tail of the pigeon.It belongs to a folk custom, which has a history of thousands of years. Many places in my country are produced, of which Beijing is the most famous.It is roughly divided into four categories in terms of shape, namely gourds, tube, stars, and star eyes.The method of wearing is also very simple. From the middle of the pigeon tail, there are 1 cm and a half of the tip of the pigeon tail.