Rafinesque’s big-eared bat


Rafinesque’s big-eared bat (Corynorhinus rafinesquii)


Total Length

4 to 4.5 inches  (10.0-11.4 cm)


8 to 14 grams


10.1 to 11.8 inches (26-30 cm)

Back fur color

Gray, brown, grayish brown

Belly fur color



Broad and long

Distinguishing characteristics

Huge ears, toe hairs extend past claws

Roost Pattern

Solitary or very small groups















  • Found in caves, forests, loose bark and cavities in trees, rock crevices, buildings and other man-made structures.

Food Habits

  • Usually emerges late evening
  • Feed on flying insects such as moths, mosquitoes, beetles, and flies    


  • Southeastern Unites States from Virginia to central Florida, west to eastern Texas and eastern Arkansas and Missouri through Tennessee and Kentucky into southern Indiana and eastern Illinois.


 Range Map from Tennessee Bat Working Group


  • Mating occurs in fall
  • Young born late May to early July
  • Litter size 1 pup
  • Young able to fly at 3 to 4 weeks of age
  • Maternity colonies can vary from a few individuals to several dozen individuals