More bat image

Continue of my bat project which I did last year.
My previous thread : https://www.cameratrapper.com/showth...-Bats-with-pup

Always love capturing them in camera. One of the most mis undestood mamals in world.
Bats can eat up to a thousand insects in an evening. Their bug-eating prowess is so notable it carries economic importance.
A "nontoxic pest-control services" for free.

Brilliantly done! I only have a PIR sensor for my camera trap, so would probably be no good for capturing images of bats.
What trigger did you use for these images ?

Sensor used here is Hahnel Captur Module Pro.