Book 31, Question 76 · Video
How can a bird sing two notes at the same time?
A bird’s voice box is called a syrinx, and it sits deep in the chest where the windpipe splits in two. Each side has its own set of tiny membranes that vibrate when air passes over them. A songbird can control the two sides separately, so it can make two different sounds at once. That is why some songs, like a thrush’s, seem to play a flute duet all by themselves.
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What Crafty Clover says in this video
Intro
Hi there, curious minds! I'm Crafty Clover! Let's discover something amazing. How can a bird sing two notes at the same time?
The Big Idea
Some birds can sing two notes at once! It's like a duet with just one singer. How do they do it?
The Syrinx
Step one: The Syrinx. A bird's voice box is called a syrinx. It sits deep in the chest, where the windpipe splits in two.
Two Sides
Step two: Two Sides. Each side of the syrinx has its own tiny membranes. They vibrate when air passes over them, making sound.
Separate Control
Step three: Separate Control. A songbird can control the two sides separately, so it can make two different sounds at once. That's why a thrush's song can sound like a flute duet all by itself.
A Closer Look
Let's take a closer look! Splits in two. Work alone. Vibrate. At once.
Quick Facts
Quick facts! Your own voice box, the larynx, sits high in your throat. Thrushes can sound like they're singing a duet alone. Air makes the membranes vibrate. Two sides make two sounds.
Think Like a Scientist
Now, think like a scientist! Hum a steady note. At the same time, try to whistle a different note. It's really hard! Try for 10 seconds. Birds do this naturally with the two sides of their syrinx.
Outro
A bird's voice box, the syrinx, sits deep in the chest where the windpipe splits in two. Each side has its own vibrating membranes, and songbirds control them separately to sing two notes at once. Science is amazing! What will you discover next? Every question is a new adventure, so keep wondering and keep exploring with me! Crafty Clover can be found on Amazon Books, Google Bookstore, and Apple Books. Available for purchase or download! Bye for now!