Question

The special sound producing organ in bird is
A) Syrinx
B) Glottis
C) Larynx
D) Oesophagus

Answer 1

Hint: The sound box from which the birds produce sound is different from humans. It is very well developed in singing birds like koel.

Complete Answer:
To answer this question, we have to know about the sound system of the birds and how it differs from human
In human beings, air is inhaled through the nose. It then travels through the pharynx and reaches the vocal cavity. Oesophagus runs behind the windpipe which connects pharynx with the stomach. The vocal cavity is present in the neck. Vocal cavity consists of the larynx and epiglottis. Larynx is called the voice box. It is involved in voice production. The epiglottis helps in swallowing of food and modulation of voice..
The birds produce more complex sounds than other animals. The acoustics in birds are different from all the mammals. The birds breathe in air through the bills. It travels through the throat into the windpipe (trachea). The air passage is adapted for secondary purposes of sound production. At the point where windpipe divides has a specialised sound producing organ which is called the syrinx. It is called the lower larynx and is situated at the other end of the windpipe.

Thus the correct answer is (A). The special sound producing organ in birds is Syrinx.



                                                           

Note: The syrinx is the organ in the birds for voice production whereas in humans larynx is the organ specialised for voice production. In birds syrinx is situated at the end of windpipe whereas in humans larynx is present in the throat.