Eagle flute (pinyin: yīng dí), named after the eagle’s wing bones, is also known as bone flute, eagle bone flute, or jerk. There are two kinds of eagle flutes, one is Tibetan eagle flute, and the other is Tajik eagle flute, which is often used for solo.
The body of the bone flute is mostly made of the wing bones of the eagle, and also the leg bones of the crane. Bone flutes have different specifications, lengths and thicknesses. They are usually shorter and thinner than bamboo flutes. Generally, the length of the wing-bone flute is about 25 centimeters, and the length of the crane-leg flute is about 29 centimeters and 2 centimeters in diameter. The top of the tube body is sealed, leaving only a narrow slit as a blowing hole, a sounding hole is opened obliquely on the back of the tube end, and six sounding holes are opened at the lower part of the front of the tube body (or the first five and the other one).
The representative pieces of the eagle flute include "Spring Sowing", "Up the Mountain" and "Down the Mountain".