What type of word is the early bird gets worm adage common saying or idiom?

The saying "the early bird gets the worm" is considered an idiom.

Here's why:

* Literal meaning: The phrase doesn't literally mean that birds that wake up early will find worms.

* Figurative meaning: It conveys the idea that those who are diligent and start early are more likely to succeed.

* Fixed expression: The words are used in a fixed order and cannot be changed without changing the meaning.

Let me know if you'd like to know more about idioms!