Birdo is a medium-weight character who rides medium bikes and karts.
Birdo lives in the Mushroom Kingdom. She's a medium weight character. She debuted in Super Mario Bros. 2, as a boss; she spat eggs out of her mouth at the character. Since then, she's taken on more friendly roles in spin-off games, even having some romantic ties with Yoshi. There is a theory that she is a male.
- Her boyfriend is Yoshi.