BCI Bracken Bat Cave emergence wide shot

The first batch of Mexican free-tailed bats emerge from the cave's 100-foot wide mouth during the bats' nightly venture out to feed. Photo by Iris Dimmick.

The first batch of Mexican free-tailed bats emerge from the cave’s 100-foot wide mouth for the bats’ nightly feeding pilgrimage. Photo by Iris Dimmick.

The first batch of Mexican free-tailed bats emerge from the cave’s 100-foot wide mouth during the bats’ nightly venture out to feed. Photo by Iris Dimmick.