Here's why it's difficult to determine:
* Uncommon name: "Birdie" is a relatively uncommon name, so it's unlikely to appear in large-scale name databases.
* Nicknames and variations: Many people might be called "Birdie" as a nickname, even if their legal name is different.
* Different cultures: Name popularity can vary significantly across different cultures and countries.
Instead of finding an exact number, you could:
* Check online databases: Look at websites that track baby names and see if they have data on "Birdie".
* Search social media: You could try searching for "Birdie" on social media platforms like Facebook, Twitter, or Instagram to get a sense of its popularity. However, this won't be a precise count.
Remember, any numbers you find will be estimates.