Bracken Cave
Protecting a Jewel in Texas

Protecting a Jewel in Texas

Bracken Cave Latest
Conservation Deal Saves the World’s Largest Bat Colony on Halloween SAN ANTONIO (Oct. 31, 2014)– Today the City of San Antonio, The Nature Conservancy and Bat Conservation International (BCI) have secured 1,521 acres adjacent to BCI’s Bracken Bat Cave, home to the largest colony of Mexican free-tailed bats in the world. The property, known as Crescent Hills, was purchased for $20.5 million and was previously slated to become a 3,500-home subdivision. Read the full press release here.


Bracken Cave is the summer home of the world's largest bat colony. With millions of Mexican free-tailed bats living in the cave from March thru October, Bracken holds one of the largest concentration of mammals on earth.

The emergence of these millions of bats, as they spiral out of the cave at dusk for their nightly insect hunt, is an unforgettable sight.

The cave and 1458 acres of the surrounding Texas Hill Country is owned and protected by Bat Conservation International. The cave is on the suburban fringe of San Antonio, in an area of rapid population growth. If not for the generous donations of BCI's members and friends, the cave and its remarkable bats likely would have been engulfed by subdivisions.

In addition to conserving the cave bats, BCI stewards the entire property, protecting endangered birds and rehabilitating the land by removing invasive vegetation and reviving native plants.

BCI relies on the support of our amazing members around the world.

Our mission is to conserve the world’s bats and their ecosystems to ensure a healthy planet.

Please join us or donate so our work can continue.