How Buckbeak Found His VoiceMisc
Cornell University's Macaulay Library, home of the world's largest collection of natural sounds, helped provide appropriate voices for many of the creatures in the film versions of Prisoner of Azkaban and Goblet of Fire. When looking for an appropriate sound for Buckbeak's call in PoA, the film's producers contacted the library.
"Greg Budney, curator of audio at the Macaulay Library, came up with the screech of a limpkin, a swamp-wading bird with long legs and long curving beak that lives mainly in Florida, the Caribbean islands and Central and South America."For more information, read the article in the Cornell Chronicle.