On this 2 CD audio guide you'll hear nearly 200 tracks featuring the hoots, screams, chitters, squawks, squeals, bill claps and barks of 19 regularly occurring species of North American owls and two raritiesthe most comprehensive guide to owl vocalizations available.

Owls have a rich repertoire of sounds for communicating in the dark. A 56-page booklet with full-color images describes the wide variety of vocalizations made by each species. It will help birders identify these denizens of the nightfrom the ghostly Barn Owl, to the tiny Elf Owl, to the familiar Great Horned Owl. You'll gain a greater appreciation for owls and their sounds and behaviors.