Who plays bird woman in Mary Poppins?

There is no character named "Bird Woman" in the movie Mary Poppins. Perhaps you're thinking of a different character?

Here are some possibilities:

* The Bird Woman is a character from the book series "Mary Poppins" by P.L. Travers. She is a small, old woman who has the ability to speak to birds. However, this character does not appear in the 1964 movie adaptation.

* The "Feed the Birds" Scene: In the movie, Mary Poppins sings the song "Feed the Birds" to the children, while feeding pigeons in St. James's Park. While this scene features birds and Mary Poppins, there's no specific "Bird Woman" character.

Can you provide more context or details about the character you're thinking of?