When you've got a big bird, and you open it up, and there's a slightly smaller bird inside. And then you open the slightly smaller bird and there's an even smaller bird inside.
These are known as nesting birds.
Discussion
When you've got a big bird, and you open it up, and there's a slightly smaller bird inside. And then you open the slightly smaller bird and there's an even smaller bird inside.
These are known as nesting birds.
"We've got a nesting bird up in the tree."
- "Cool, how many are there inside of each other?"
- "What?"