Search CO Bat Matrix > Big free-tailed bat (Nyctinomops macrotis) Threat Matrix
Species Profile

The big free- tailed bat occurs mainly in southern California, Arizona, New Mexico, Texas and Mexico. Long thought to be an accidental wanderer in Colorado, recent data show the presence of breeding colonies in Colorado. Indeed, audible echolocation calls and recordings provide evidence of widespread occurrence across Colorado.
Cave Management
Crevice and Cavity Management
| Disturbances | G |
Energy Development
Forest Management
Mining
Rangeland Management
Urban
| Loss of Human-made Roosts (Buildings and Bridges) | U |
| Extermination of Bats | U |
| Urbanization | U |
| Contaminants | U |
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