PAWHUSKA — The bison of the Tallgrass Prairie Preserve are getting their annual health checkups.
The Nature Conservancy is conducting its 19th annual bison checkup as flatbed trucks are rounding up the animals in a six-day operation that began Thursday so the herd can be evaluated and culled.
The animals are herded and corralled — then weighed as “keepers” are vaccinated and returned to the 24,000 acre preserve while calves are branded with the year of their birth.
The remainder is sold for meat.
The Tallgrass Prairie Preserve began with a bison herd of about 300 in 1993 on land that is the largest protected remnant of tallgrass prairie remaining in the U.S.