Terrestrial Mammal Species of Special Concern in California, Bolster, B.C., Ed., 1998 31 Pallid bat, Antrozous pallidus Elizabeth D. Pierson & William E. Rainey Description: Antrozous pallidus is a large (forearm = 45-60 mm), long-eared vespertilionid bat. Geographic Range. 1 or 2 young are usually born in May or June. Pallid Bats mate on horizontal surfaces or while hanging upside down in fall and perhaps in winter. Including the Big Brown Bat, California Myotis Bat, Mexican Free-Tailed Bat, Pallid Bat... 1.800.901.1102

Pallid bats are relatively large bats compared with other bats in California, are light colored, and have fairly long ears.

Pallid bats reside yearly in the majority of their range and they have been collected at sites up to 8,000 feet in elevation. Pallid Bats are presumed to hibernate, but few have been found in winter. Unusual library will help scientists track bat species. In California pallid bats are associated with oak woodlands at lower elevations (BioSystems 1994) and may roost in a variety of places including tree cavities, rock crevices and man made structures.

Less than 1% of the Pallid Bat’s known global distribution is in Canada. The Pallid Bat inhabits hot, arid regions across western North America (Figure 1), from southern British Columbia to central Mexico with an isolated population in Cuba (Orr and Silva Taboada 1960; Silva Taboada 1976). Maternity colonies form in rock crevices, buildings, and in other man-made structures. Bat identification for six of the most prevalent bat species. It Pallid bats range from southern British Columbia through Montana to central Mexico.

By Sean Greene. They occur from the Okanagan valley in British Columbia, south through eastern Washington, Oregon, and California to Baja California Sur, Sonora, Sinaloa, Nayarit, … Holy bat sounds! Day and night roosts include crevices in rocky outcrops and cliffs, caves, mines, trees (e.g., basal hollows of coast redwoods and giant sequoias, bole cavities of oaks, exfoliating Ponderosa pine and valley oak bark, deciduous trees in riparian areas, and fruit trees in orchards), and structures such as bridges barns, porches, bat boxes, and buildings.