A friend of mine did a google search for Clips by typing in Higgins Whistle Tunes and got the following:
… African Greys are known for their ability to talk. Higgins talks very little.
He prefers to whistle tunes. Also, mimicking noises is another talent. …
www.geocities.com/birdnancybilldm_98/Higgins.html
You can’t make up things this weird.
Tony
You’re going to have to get yourself one of them birdies, Tony.
The shame of it.
Higgins the parrot knows more tunes than I do!
Best wishes,
Jerry
Might I suggest that you replace your nose with a beak for your next avatar change? 
African greys are awesome . . . their intellect has been measured to that of a two year old child. I would never own one, as any lack of attention can lead to feather plucking and self mutilation. They deserve only the best of owners.
Back in the 16 century or so, it was pretty common to teach different species of caged birds to whistle tunes. You can still buy a book called (something like) The Bird Fancier’s Delight which contains different tunes intended for different types of birds. Recorder music dealers carry this book.
Basically, you had to sit there and play the tune over and over until the bird learned it. The process of teaching the bird was called recording, and some people speculate that this is where the Recorder got it’s name. Apparently trained birds commanded quite a high price. Today, with a digital loop device, it oughta be fairly easy to train a bird without having to play the tune yourself…