Wild horses clash on July 16, 2021, near U.S. Army Dugway Proving Ground, Utah. (AP Photo/Rick Bowmer)
A helicopter pushes wild horses during a roundup on July 14, 2021, near U.S. Army Dugway Proving Ground, Utah. (AP Photo/Rick Bowmer)
A helicopter pushes wild horses during a roundup on July 14, 2021, near U.S. Army Dugway Proving Ground, Utah. (AP Photo/Rick Bowmer)
A helicopter pushes wild horses during a roundup on July 14, 2021, near U.S. Army Dugway Proving Ground, Utah. (AP Photo/Rick Bowmer)
Free-ranging wild horses gallop from a watering trough on July 8, 2021, near U.S. Army Dugway Proving Ground, Utah. (AP Photo/Rick Bowmer)
Wild horses walk to a water trough on July 8, 2021, near U.S. Army Dugway Proving Ground, Utah. (AP Photo/Rick Bowmer)
Wild horses graze on July 8, 2021, near U.S. Army Dugway Proving Ground, Utah. (AP Photo/Rick Bowmer)
Wild horses gather around a pond at Simpson Springs on July 14, 2021, near U.S. Army Dugway Proving Ground, Utah. (AP Photo/Rick Bowmer)
Wild horses drink from a pond at Simpson Springs, July 14, 2021, near U.S. Army Dugway Proving Ground, Utah. (AP Photo/Rick Bowmer)
A free-ranging wild horse walks through a pond at Simpson Springs, on July 9, 2021, near U.S. Army Dugway Proving Ground, Utah. (AP Photo/Rick Bowmer)
A free-ranging wild horse walks through a pond at Simpson Springs, on July 9, 2021, near U.S. Army Dugway Proving Ground, Utah. (AP Photo/Rick Bowmer)
A wild horse walks to a watering trough on July 8, 2021, near U.S. Army Dugway Proving Ground, Utah. (AP Photo/Rick Bowmer)
A wild horse drinks from a watering hole on July 16, 2021, near U.S. Army Dugway Proving Ground, Utah, before mustangs from this herd were rounded up. (AP Photo/Rick Bowmer)
Wild horses gather at an empty watering trough on July 9, 2021, near U.S. Army Dugway Proving Ground, Utah. The trough would normally be fed by a spring, but sometimes has run dry in the drought. (AP Photo/Rick Bowmer)
Wild horses gather at an empty watering trough on July 9, 2021, near U.S. Army Dugway Proving Ground, Utah. The trough would normally be fed by a spring, but sometimes has run dry in the drought. (AP Photo/Rick Bowmer)
Wild horses gather at an empty watering trough on July 9, 2021, near U.S. Army Dugway Proving Ground, Utah. The trough would normally be fed by a spring, but sometimes has run dry in the drought. (AP Photo/Rick Bowmer)
A wild horse arrives at a watering trough on July 8, 2021, near U.S. Army Dugway Proving Ground, Utah. (AP Photo/Rick Bowmer)
A wild horse walks from a watering trough on July 9, 2021, near U.S. Army Dugway Proving Ground, Utah. Mustangs from this herd were later rounded up as federal land managers increased the number of horses removed from the range during an historic drought. (AP Photo/Rick Bowmer)
Free-ranging wild horses gallop from a watering trough on July 8, 2021, near U.S. Army Dugway Proving Ground, Utah. (AP Photo/Rick Bowmer)