Several varieties of furry fliers are likely closer than you think. Given the rampant spread of a deadly bat disease, we’re lucky to find the critters here at all. Learn where in Chicago they call home.

And we also track down the most biodiverse spot in Chicago-proper and learn exactly what lives there. Hint: you might think you're in the Southwest. Illustrations for our bat interactive are by Erik Rodriguez of the Illustrated Press.

Music Beds:

B.Fleischmann - Broken Monitors

The Womb - Low Flying Bats

Arms and Sleepers - Lisbon

Hauschka - Wonder

CFCF - Lamp

Sand - Mountains

Takagi Masakatsu - Guinacridone

Bibio - The Ephemeral Bluebell

Nat Baldwin - Real Fakes

Youth Lagoon - Boatfriend

Takagi Masakatsu - Early Summer

Laszlo - Saintonge

Vulfpeck - Outro

Tomasz Bednarczyk - Shimokita