Bone whistle (pinyin: Gǔ shào) is made of a section of a bird's bone tube, with a hole carved on one side, and a movable limb bone is inserted into some of the bone tube to adjust the tone. A large number of wild animal remains were unearthed from the Hemudu site, most of which are deer, with more than 400 antlers alone. It can be seen that people hunted mainly deer at that time. The Hemudu clan is rich in deer, which has a lot to do with the use of bone whistle. Hunters use bone whistle to simulate deer's chirping, attracting the opposite sex and waiting for the opportunity to trap and kill.
The upper limit of the bone whistle unearthed at the Hemudu site in Yuyao, Zhejiang, is 7000 years old. The "bone whistle" is made by cutting the middle limb bones of birds and fowls. The length varies from 4 to 12 cm, and the body is slightly curved. One of them is a bone whistle. When unearthed, a limb bone was inserted into the cavity. Put a section with a hole into the mouth and blow lightly, while twitching the limb bone in the cavity, you can blow a simple music.