What are the birthdays of The Avengers?

The birthdays of the original six Avengers, as depicted in the Marvel Cinematic Universe, are as follows:

- Iron Man/Tony Stark: May 29

- Captain America/Steve Rogers: July 4

- Thor: Unknown (Asgardians do not celebrate birthdays in the same way humans do.)

- The Hulk/Bruce Banner: December 18

- Black Widow/Natasha Romanoff: Unknown

- Hawkeye/Clint Barton: Unknown