Can sparrows talk?

Obviously, I don't know why parrots talk. In fact, the secret lies in its special physiological structure-sound tube and tongue. Although everyone can speak, the vocal organs of parrots are different from those of humans. The vocal organ of the parrot is called the vocal tube, which is located at the junction of trachea and bronchus, and consists of 3-6 dilated and deformed trachea and three pairs of deformed bronchus adjacent to it. Ordinary birds can make sounds with different frequencies and heights because when the air enters the pipe, it makes different sounds with the vibration of the pipe wall. In addition to the basic characteristics of birds, the vocal organs of parrots are more perfect than ordinary birds. There are four or five pairs of special muscles-vocal muscles, which adjust the diameter, speech speed and tension of the vocal tube. Under the control of the nervous system, the vocal muscles contract or relax and make songs.

In the whole structure of the sound tube, the sound tube is also very similar to the structure of human vocal cords, except that the human vocal cords are 20 cm from the throat to the tongue end, which is a right angle, while the parrot's sound tube is an obtuse angle from the tongue section 15 cm. This angle is the key to determine the pronunciation syllable and tone. The closer to the right angle, the stronger the sense of syllable and tone. Therefore, parrots can make cadence sounds and syllables like humans.

In addition, the parrot's tongue is very developed, smooth, thick and soft, and its shape is very similar to that of human tongue. It is because of this standard vocal condition that parrots can pronounce some simple but accurate syllables.