Here's Birdo's voice mod over Yoshi. Birdo's voice is played by Kazumi Totaka, instead to Professor E. Gadd and Yoshi.
But in my case, I creted a sawnd file for a sound mod for Super Smash Bros. Brawl. Nobody made a Birdo Sawnd file in Brawl Vault, because, I guess the Birdo model is Imported over Yoshi, and is still here The Yoshi's voice. So, I made this one, apart to Kitty Corp. Meow Mix: Brawl Vault.
Birdo's voices clips are from Mario Kart: Double Dash, Mario Party 8 and 9.
Birdo Model can found in Brawl Vault, and here's the another one with fixed and edited rig.