Bibi the African Grey parrot slightly mis-quotes the classic lines the 1948 Humphrey Bogart film The Treasure of the Sierra Madre. The original scene is here. Honestly, the world needs more talented birds to remind us of our favorite film quotes.
I checked Blazing Saddles, and it isn't exactly that quote, either.
http://www.youtube.com/watch?v=TFwprS_L6tg