Click the links below for details about the bird vocalizations used in this episode from the Macaulay Library at the Cornell Lab of Ornithology: Intro music: Kai Engel Walking Barefoot on Grass Outro music: The United States Army Old Guard Fife and Drum Corps: United States National Anthem (The Star Spangled Banner) Download Wake-Robin by John Burroughs in e-reader format at or archive.org. The Creative Commons and public domain contains a wealth of images, music and more. The images used in these show notes link back to the contributors.