The Wind-Up Bird character from The Journey of Oz was never actually in the original Oz books. I was read the The Wind-Up Bird Chronicle at the time by Haruki Murakami. This was a little nod to that author while I was putting this animation idea together. In the story the Tin Woodsman winds up the bird, who then through perpetual motion winds up more and more birds. They eventually have enough birds to wind up the Smasher.