3. A fishing line, which goes through a little ring under Big Bird's neck, connects the wings and acts as a lever to move the right wing up and down. 4. The script is taped in front of Spinney on ...

The puppeteer's other hand is in Big Bird's wing, and that is connected by wire to his other wing so they move together. Commenters were in awe, with one writing that the puppeteer has "incredible ...