Birds of Southern Africa: MP3 Sound Collection

Boesman, Peter and Fred Van Gessel

The Birds of Northwest Ecuador, Volume II: The Lowlands and Lower Foothills [CD]

Moore, John V.

The Backyard Birdsong Guide: Western North America Audio Field Guide

Kroodsma, Donald

Bird Songs and Calls of Lake Tahoe [CD]

Moore, John V.

Bird Sounds in Flight - MP3 CD

Hans-Heiner Bergmann, Claude Chappuis, Karl-Heinz Dingler

Bird Sounds of Ecuador: A Comprehensive Collection

Moore, John V. ; Niels Krabbe, and Olaf Jahn

Birds of Colombia: MP3 Sound Collection [CD]

Boesman, Peter

Above the Pacific: Marine Birds & Mammals of the Farallon Islands [Cassette]

Sander, Thomas G.

Bird Songs of the Lower Rio Grande Valley and Southwestern Texas (CD)

Keller, Geoffrey E.

Stokes Field Guide To Bird Songs - Western Region (CD)

Colver, Kevin J.; Stokes, Donald; Stokes, Lillian

Stokes Field Guide To Bird Songs - Eastern Region (CD)

Elliott, Lang; Stokes, Donald; Stokes, Lillian

Proceedings of the 22nd International Ornithological Congress held in Durban, South Africa [CD-Rom]

Adams, N.J.; Slotow, R.H.