How does a parrot actually declare that "polly wants a cracker"?
A person would string these sounds together using their larynx, the organ at the top of their windpipe.
It consists of rings of muscles and vibrating membrane that controls airflow.
They'd finely shape the vocalization into enunciated words using their tongue and lips.
For a parrot, however, the sound would originate in its syrinx, located at the base of its windpipe.
Many other birds have two vibrating membranes within this organ.
But parrots ,like us ,has just one.As sounds leave the airway, parrots shape them using their tongues and beaks.
They can do this because they have especially flexible, powerful tongues that help them manipulate seeds and nuts.
And while parrot's beaks are rigid,they have very flexible jaw joints,giving them a lot of control over how wide and how quickly they open their beaks.
string together 连贯发出
larynx 喉
windpipe 气管
rings of muscles 环状括约肌
vibrate 震动
Membrane 薄膜
vocalization 发声
enunciated 发音清晰的
syrinx (鸟类的)鸣管
beak (鸟类的)嘴，喙
give control over 掌控
