JD Salinger died yesterday, and many are remembering the reclusive New York writer through his most famous character: Holden Caulfield. (This is the best article on Holden’s New York.) In The Catcher in the Rye, Holden offers an immortal two-day walking tour of New York City in December 1949. The scene that stands out the most isn’t the Greenwich Village jazz club, the Metropolitan Museum of Art, slimy bars — but the several mentions of another: Central Park South’s pond. He wonders where the ducks go when it freezes. There’s some symbolism there, I think. So I went to check.