Read more about Birdo at: Wikipedia

Official Site: Nintendo

Birdo, known in Japan as , is a fictional character in the Mario series of video games, who first appeared in Yume Kōjō: Doki Doki Panic, which was localized for English audiences as Super Mario Bros. 2 and is an enemy to Mario. Since her appearance, she has been a recurring character in the series, more frequently in the Mario sports games as a playable character, as well as Mario Party titles. She has also made several cameos, particularly in the Super Smash Bros. series and the Wii video game Captain Rainbow.

Birdo's gender in the original manual for Super Mario Bros. 2 asserts that Birdo is a man who believes that he is a girl, and would rather be referred to as "Birdetta". Later releases of Super Mario Bros. 2 lacked any mention of her gender in either the game or the manual. Nintendo eventually established Birdo as female, first in Mario Tennis which depicted Birdo and Yoshi as lovers. However, several games portray her as male, such as Captain Rainbow, or refer to the gender confusion without assigning one, such as in Super Smash Bros. Brawl. It has been suggested that Birdo is a post-op transsexual by transsexual video game developer Jennifer Reitz, while Wired editor Chris Kohler felt that it was a way of retcon her transsexual status.

Birdo has received mostly positive reception for her role in the Mario series; IGN editor Lucas M. Thomas suggested that she was almost as well-known as Yoshi, a frequent partner of hers, in the sports games, while author Sherry Tuckle used Birdo as a demonstration of how Birdo's battle in Super Mario Bros. 2 presents a complex appearance yet sustains an assuring, rule-based world. However, some negative press exists, such as MTV Multiplayer editor Jason Cipriano, who criticized Birdo for being so popular over other Super Mario Bros. 2 characters. She has made several appearances in other media, including the Super Mario Bros. Super Show!, as well as promotional material such as figurines.

Birdo is a pink, anthropomorphic dinosaur who wears a red bow on her head, and has a round mouth that can fire eggs as projectiles. She also wears a large diamond ring on her finger. Birdo was originally featured in the Family Computer Disk System video game Yume Kōjō: Doki Doki Panic before it was converted to the Nintendo Entertainment System game Super Mario Bros. 2 for North American audiences. The mistake persisted in the version of Super Mario Bros. 2 included in the Super Mario All-Stars compilation, but was corrected in the Game Boy Advance re-release titled Super Mario Advance.

Birdo has not been a contender in any CBUB matches.