Sesame Street's Big Bird is Giant Golden Condor?

Like The New York Times' ArtsBeat blog says in Monday's post: Who knew??

In honor of the 40th anniversary of "Sesame Street," puppeter Caroll Spinney and a colleague responded to NYT readers' questions about the tall, yellow-feathered character. Guess what Big Bird's favorite book is? (Tip: It's about wild birds.)