Family Vespertilionidae

Evening Bats

3 species from the family Vespertilionidae.

Typical settings for this family#

Shutter (still)1/250 s
Shutter (action)1/20,000 s flash duration
Aperturef/8–f/11
Size6–12 cm

3 species#

Big Brown Bat Big Brown BatEptesicus fuscus Eastern Red Bat Eastern Red BatLasiurus borealis Tri-coloured BatPerimyotis subflavus

Field-craft#

  • Photograph emerging bats at dusk with high-speed flash — never at roosts in winter.
  • Bats need high-speed flash with an IR beam trigger; never photograph roosting bats in winter hibernation.

Last updated October 03, 2026 · How we calculate · Sources