In this episode featuring Aviary — the shapeshifting bird superhero — the surprising abilities of birds come in handy when a student gets lost exploring a cave with his class. Aviary remembers an amazing bird called the Himalayan Swiftlet that’s able to echolocate like a bat, and enlists this species’ superpower to save the day.More info and transcript at BirdNote.org. Want more BirdNote? Subscribe to our weekly newsletter. Sign up for BirdNote+ to get ad-free listening and other perks. BirdNote is a nonprofit. Your tax-deductible gift makes these shows possible.