From the New York Times: Taking a Walk through J.D. Salinger’s New York.

Hey, listen. You know those ducks in that lagoon right near Central Park South? That little lake? By any chance, do you happen to know where they go, the ducks, when it gets all frozen over?

There it is: the Holden Caulfield question. Sara Cedar Miller gets it all the time.

“Everybody’s read that book,” said Ms. Miller, the historian for the Central Park Conservancy. It went without saying that the book in question — the book with the question, on Page 60 — was “The Catcher in the Rye.”

And the answer, according to Ms. Miller, is that the ducks never go anywhere.