Evening Bat


photo by: james Kiser


Evening Bat (Nycticeius humeralis)


Total Length

3.6 to 4 inches (9.1-10.2 cm)


5 to 14 grams


10.2 to 11 inches (26-28 cm)

Back fur color

Dark brown

Belly fur color

Slightly lighter


Short and rounded

Distinguishing characteristics

Black face, wings, and ears. Strong odor

Roost Pattern
















  • Found in tree cavities and crevices, loose bark, buildings and other man-made structures

Food Habits

  • Forage in the early evening and just before dawn
  • Feed on small flying insects such as flying ants, beetles, and moths  
  • Forage along edges of mature forest, clearings, and waterways



  • Eastern United States from eastern Nebraska, west to the East Coast and from northern Iowa south to northern Mexico. 

Range Map from Tennessee Bat Working Group


  • Mating occurs in the fall
  • Young born from late May to early June
  • Litter size usually 2 pups
  • Young able to fly at about 3 weeks of age
  • Maternity colonies can contain hundreds individuals