handelt sich um einen Fehler von den Übersetzern...von Wikipedia:
"Confusion has also arisen over Birdo because the names for Birdo and Ostro, an ostrich that playable characters can ride, were erroneously switched in the Super Mario Bros. 2 end credits as well as in the game manual."
laut der englischen SMB2 Anleitung ist Birdo übrigens ne Transe...Zitat:
"He thinks he is a girl and he spits eggs from his mouth. He'd rather be called 'Birdetta."