Big free-tailed bat is a wide-ranging but rarely encountered desert bat in Arizona, roosting deep in rock crevices and cliff faces rather than caves or buildings, which keeps it out of most roost surveys. Its record sits in the bottom fifth of the state’s mammal count.
The scattered counts from April through October are too thin and too spread out to describe a real seasonal pattern; this is a bat that travels long distances and turns up unpredictably, so a handful of records across half the year says more about how hard it is to detect than about when it’s actually present.
Full species profile
