Beginning February 1st, Big Bend National Park will implement temporary closures in selected areas of the Chisos Mountains, aiming to safeguard the nesting sites of Peregrine falcons through May 31st. This initiative, spearheaded by the National Park Service (NPS), is part of ongoing efforts to protect the Peregrine falcon, a species that, while no longer federally endangered as of August 1999, remains listed as threatened in Texas.
The NPS has identified specific regions within the park for closure, including a segment of the East Rim Trail from the southern junction of the Boot Canyon Trail to a point just north of Campsite ER-4, along with East Rim Campsites ER-4 through ER-9. Additionally, technical rock climbing is prohibited within a quarter mile of known peregrine eyries to minimize disturbances to the nesting falcons.
These protective measures adhere to NPS policies that mandate the preservation of state-listed species and species of concern, regardless of their federal classification. The closures and restrictions are designed to ensure that the nesting falcons have environments free from human interference, which is crucial for their breeding success.
The decision to close these areas follows the observation of positive trends in Peregrine falcon nesting within the park. Despite the challenges posed by the 2021 South Rim Fire, which affected over 1,300 acres of woodland, including areas above historical falcon nesting sites, a mating pair returned to the area in 2022. Biologists conducting monthly surveys confirmed the success of the nest, with fledglings observed.
The comeback of the Peregrine falcon represents a significant conservation success story. Since its listing as endangered in 1970, concerted efforts by federal, state, and private agencies have facilitated the bird’s recovery. Acting Superintendent Chad Tinney expressed gratitude for public support and cooperation in these conservation efforts, stating, “The small population found in Big Bend National Park and the Rio Grande Wild and Scenic River represents most of the peregrines found in Texas. We appreciate the continued public support and cooperation to protect these remarkable birds.”
The NPS remains committed to monitoring Peregrine behavior and nesting sites, ready to adjust restrictions as necessary to ensure the species’ continued protection. Visitors to Big Bend National Park are encouraged to respect the closures and contribute to the conservation of this once-endangered species.
