In the movie "Up", what is the name of the explorer idolized by Carl Fredricksen?

Charles Muntz

What species of bird is known for its elaborate courtship dance involving synchronized head and wing movements? Who is the "Piano Man" singer-songwriter? Who wrote the holiday classic "White Christmas"? Who was known as the 'Mad Monk' in Russian History due to his influence over the royal family? Which policy, signed by Chester A. Arthur, required merit-based selection for government jobs?