The Macaulay Library “is the world’s largest and oldest scientific archive of biodiversity audio and video recordings.” This sonic stash is located at Cornell University, who just announced this “world’s largest natural sound archive is now fully digital and fully online.” Here’s a few of their picks for “some fascinating Macaulay Library sounds”:

Liveliest wake-up call: A dawn chorus in tropical Queensland, Australia is bursting at the seams with warbles, squeals, whistles, booms and hoots.

http://audio.macaulaylibrary.org/10/107159.mp3

Best candidate to appear on a John Coltrane record: The indri, a lemur with a voice that is part moan, part jazz clarinet.

http://audio.macaulaylibrary.org/9/97903.mp3

Most spines tingled: The incomparable voice of a Common Loon on an Adirondacks lake in 1992.

http://audio.macaulaylibrary.org/10/107964.mp3