Underwood’s bonneted bat is mostly a Mexican species, and Arizona sits at the very northern tip of its range, reaching just into the Sonoran Desert basin around Phoenix, where Tonto National Forest, Sonoran Desert National Monument, and Lost Dutchman State Park offer the tall cliffs and rock crevices this free-tailed bat needs to launch into flight from a drop rather than taking off from the ground.
Records are scattered across February, March, and May with nothing else on file, too few to describe a real seasonal pattern. That thinness fits a species genuinely rare at the edge of its range in the state, one of the least-documented bats Arizona hosts.
Full species profile
