Austin Ecological Services Field Office Library

Find instructional documents covering permits, surveying, and habitat assessments for the golden cheeked warbler.

Find survey methods and reporting guidelines to be used for conducting presence/absence surveys for Houston toads (Bufo houstonensis) under a section 10(a)(1)(A) scientific research and recovery permit. 

Fifteen species of karst invertebrates are listed as endangered in central Texas. Learn more about the life history and federal listing status of these species.

Eight species freshwater mussels are currently listed as endangered in Texas and one species is listed as threatened. An additional 4 species have been proposed to receive endangered or threatened species status. Learn more about the life history, federal listing status, recovery efforts, and sampling recommendations of these species.

Five species of freshwater fishes in west Texas are currently listed as endangered and one species is listed as threatened. An additional species has been proposed to receive threatened species status in the state and one more is under review. Learn more about the life history, federal listing status, recovery efforts, and sampling recommendations of these species.