Birdo, Mario Party 9
Birdo's artwork from Mario Party 9.
First Game Super Mario Bros. 2 (1988)
Gender Female or Male
Homeland Subcon
Race Birdo
"This is as far as you go!"
― Birdo, Super Mario Advance

Birdo, also known as Catherine, is a recurring character in the Mario series. She first appeared in Yume Kōjō: Doki Doki Panic (夢工場 ドキドキパニック), a Japanese game featuring Birdo as the first boss. After its release in Japan, Nintendo of America remade it, featuring Mario characters, but kept the enemies and bosses the same. This remake was known to be Super Mario Bros. 2.

Birdo later appeared in many Mario spin-offs like Mario Tennis. She is voiced by Jen Taylor


For the SNES, Birdo appeared in Super Mario All-Stars as a boss, Wario's Woods as Toad's helper, and Super Mario RPG: Legend of the Seven Stars as a boss.

For the Nintendo 64, Birdo was in Mario Tennis as Yoshi's partner, and Mario Golf: Toadstool Tour as Yoshi's partner again. Also 64 and GC link icon cameo appeared in Mario Tennis (GBC) and Mario Golf: Advance Tour.

ostro appeared in Super Smash Bros. Melee for the GameCube as a cameo, Mario Superstar Baseball and Super Mario Strikers as Yoshi's teammate, Mario Kart: Double Dash!! as Yoshi's partner, and Mario Party 7 as an unlockable character. Birdo can be unlocked in the game by purchasing her in the Duty-Free Shop.

For the Wii, Birdo was in Mario Party 8, Mario Strikers Charged as Yoshi's teammate, Mario Kart Wii as an unlockable character, and Mario Super Sluggers.

Mario and Sonic at the Olympic Winter Games DS

ostro makes an appearance in Mario and Sonic at the Olympic Winter Games as a non-playable character. Appearing in the level known as Cubyrinth, she agrees to give Yoshi his Drift Board if he proves he is a Top Athlete.

Mario Kart series


Birdo's appearance in Mario Kart Wii.

ostro appears as a playable character in both Mario Kart: Double Dash!! and Mario Kart Wii. In Mario Kart: Double Dash!! she is Yoshi's default partner, and after unlocking the second wallpaper, Birdo is paired up with Peach. Her special item is the Ostro Egg and her unlockable kart is the Turbo , which has average speed and acceleration, but with above average weight. In the Dry Dry Desert track, her emblem appears many times. The Staff Ghost uses Birdo and Yoshi in the Turbo Yoshi kart in both the Dry Dry Desert track and the Yoshi Circuit track. Also Yoshi Circuit as background cameo appeared in Mario Kart DS.

In Mario Kart Wii, ostro appears as an unlockable, middleweight character. She has an equal balance of weight, acceleration, and top speed. However, her off-road statistics are quite poor. She is unlocked once the player defeats 250 players in online racing, or when sixteen Time Trials are done on different courses. Much like in Mario Kart: Double Dash!! her emblem appears in the Dry Dry Ruins track. Aside from the Miis, Birdo is the only playable character that is not used as a staff ghost.

Mario Party series

Mario Party 7

ostro becomes playable for the first time in the Mario Party Series, as an unlockable character in Mario Party 7. She will become playable when she is purchased at the Duty Free Shop for 1,000 mileage points. ostro is one of the two new characters, along with Dry Bones. In the Mario Party installments, ostro's emblem is her red bow. Also, she always wears a very elegant diamond ring on her finger, when ostro gets a star she shows off this ring during one of her poses. Her default partner is Yoshi on the Team Mode and they both are the only characters who could use the special item:Egg Orb; Its effect is that as the player went take their turn, they suck up (or eat if Yoshi) any Character Spaces that they crossed. When their turn was done, the spaces were turned into orbs that she could use. It have the same as her counterpart, Yoshi's Egg Orb, differing only in that they are covered in pink spots.

Mario Party 8

ostro and her friends are invited to the Star Carnival, where she appears as a playable character from the start. This is her second Mario Party game, and her default partner is Yoshi. When ostro emerges victorious from the Star Battle, she is crowned the Superstar and wins a year's worth of candy. Also, she appears in the group picture, this is the first Mario Party game in which ostro is not included on the box-art.

Mario Party 9

ostro appears as a playable character from the start again in Mario Party 9. This is her third time appearing in a Mario Party game. One night, when ostro and the others were stargazing, they notice a purple vortex taking all the ministars. They see that Bowser is stealing all of them, so ostro and the others venture forth to retrieve them.

Paper Mario series

Paper Mario: Sticker Star

ostro makes a brief cameo in this game in the first level of World 4: Snow Rise. After Mario hits a tree in a certain area three times, she comes out where she sings a very short song while swinging. She also gives Mario the Goat Thing Sticker and isn't seen again after that.

Physical appearance

ostro is a little female dinosaur, first of all she has a pink skin, she has two big blue eyes with three long eyelashes, she has a mouth that seems like a trumpet from where she can shot eggs, on her head she has a big red bow and she has three spikes on her tail. ostro has little hands and little feet, which have small white claws. Her stomach is white like Yoshi's and she has padded feet.

Other Media

In The Super Mario Bros. Super Show!, King Koopa's main weapon usually has ostro as part of its name.


Birdo page

The game manual for Super Mario Bros. 2 refers to Birdo as being male, and only thinking he is female.

Birdo's gender has been debated throughout the series. According to the North American instruction manual of Super Mario Bros. 2: "[Birdo] thinks he is a girl and likes to be called Birdetta.". However, later versions of Super Mario Bros. 2 make no mention in either the manual or the video game itself. In Super Smash Bros. Brawl, Birdo's trophy description describes the character as "indeterminate gender", and uses the pronoun "it" rather than gender-specific pronouns such as "he" or "she". However, several other sources refer to Birdo as a female. The confusion surrounding Birdo's gender has also been addressed in a light-hearted matter, such as when Popple pauses before settling on calling Birdo a "dame" in Mario & Luigi: Superstar Saga. In Super Mario Advance though, the Birdos in that game had female voices. Currently, it is strongly implied that Birdo is male, but identifies as female.


"Well, hello there."
― Birdo, Super Mario Advance
"I'll remember this!"
― Birdo, Super Mario Advance


  • The band Horse The Band has a song dedicated to Birdo.
  • In the instruction manual for Super Mario Bros. 2, Birdo is called Ostro and Birdo is the Roadrunner that Shy Guys ride.
  • The pads of Birdo's feet are similiar to Bowser Jr.'s.


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