Nature Watch Big Bend: A Seasonal Guide
Weber, Lynne M. and Jim
ABA Birdfinding Guide: A Birder's Guide to the Rio Grande Valley, Second edition
Holt, Harold R.
Lone Star Wildflowers- A Guide to Texas Flowering Plants
Nieland, Lashara; Willa Finley
Birding South Texas
A Birder's Guide to the Texas Coast
Lane, James A.; John L. Tventen
Checklist of the Birds of Texas-Third Edition
Texas Ornithological Society
The T.O.S. Checklist of the Birds of Texas
Arnold, Keith A.
The Birds of Texas
Tveten, John L.
A Birder's Guide to the Rio Grande Valley of Texas
Lane, James A.
Birds and Other Wildlife of South Central Texas: A Handbook [PB]
Kutac, Edward A.; Caran, S. Christopher
Hummingbirds of Texas: With Their New Mexico and Arizona Ranges [Flexi]
Shackelford, Clifford E.; Lindsay, Madge M.; Klym, C. Mark
Naturalist's Big Bend: An Introduction to the Trees and Shrubs, Wildflowers, Cacti, Mammals, Birds,
Wauer, Roland H.; Fleming, Carl M.