AUSTIN, Texas — Goats will return to the Ann and Roy Butler Hike-and-Bike Trail this weekend as part of an effort to control invasive plants and dense brush near Austin High School. The Trail Conservancy plans to bring a herd to the area Saturday and Sunday. The animals will graze on poison ivy and other vegetation in portions of the trail corridor that can be difficult to reach with conventional maintenance equipment. The conservancy manages about 110 acres of unmowed land along the trail. It says goat grazing can improve safety by reducing poison ivy, limiting the regrowth of invasive plants and clearing thick brush while avoiding chemicals and heavy equipment. Visitors are asked not to touch or approach the goats and to observe them from a safe distance. The conservancy is also seeking financial support through its Adopt-a-Goat program. Contributions start at $25 per month, which helps fund the animals’ return to the trail. A $250 donation includes a certificate with the name of an adopted goat.