A lone bison who tailed the herd is rounded up back into the corrals as the final straggler during the 58th annual Custer Buffalo Roundup on Friday, Sept. 29, 2023, at Custer State Park in Custer, S.D. Cowboys and cowgirls in South Dakota are rounding up a herd of more than 1,500 bison, sometimes called buffalos in the U.S, as part of an annual effort to maintain the health of the once-threatened species. (Matt Gade/Rapid City Journal via AP)