Big brown bats are among the most adaptable bats in North America, roosting in tree cavities and rock crevices just as readily as in barns, attics, and bridges. That flexibility shows in Kansas, where records come from 35 counties, led by Johnson and Douglas in the east but reaching west to Ellis and Logan.
The record set here draws on both sources about equally, 97 entries in GBIF and 100 from iNaturalist, two overlapping sets. Reports come in every month but rise through summer and peak in August at 20, which likely reflects when researchers run bat surveys and young bats start flying independently, not that the species disappears the rest of the year; it’s recorded here year-round.
NatureServe lists big brown bats as secure throughout Kansas, and a ranking near the 69th percentile puts them squarely in the middle of the state’s tracked mammals.
Full species profile
