Big brown bats carry a NatureServe S5 secure rank in Alabama, and the record splits almost evenly between iNaturalist (87) and GBIF (81), suggesting casual sightings and survey data document this building-roosting bat in roughly equal measure. As one of the few bat species that regularly shelters in structures, records near Little River Canyon and the Talladega uplands likely reflect both natural cave and rock-crevice roosts and nearby human buildings.
Records show three separate bumps, February, May, and July, rather than one smooth curve, a pattern that plausibly tracks distinct phases of the bat’s year: late-winter emergence from torpor, spring maternity-colony activity, and summer foraging when insect prey peaks.
Full species profile
