Sixty or so volunteer wranglers showed up from across the state to "coax" the Antelope Island herd of more than 700 animals to the bison corrals. The roundup is held annually to help control the population, which managers say should be kept to about 550 animals.

"We'll sell about 230 head this year at our second annual live auction on Nov. 18," said Steven Bates, wildlife range manager for Antelope Island State Park.

The roundup will continue on horseback until all the bison are in the corrals, something Bates says could happen as early as Thursday afternoon if the animals continue to cooperate like they did on Wednesday. Helicopters will be sent Saturday to find any stragglers to complete the roundup.

The public is welcome to watch the wranglers move the bison from the road on the east side of the island. Visitors will also be able to see the bison in the corrals near the visitors center through Nov. 18.

Biologists will weigh, draw blood samples and inoculate each bison at the corrals. The public can watch that process from 8 a.m. to 5 p.m. on Nov. 3-6. A live auction for the excess animals will be held at the corrals Nov. 18.

Visit http://www.stateparks.utah.gov/roundup/ for more information.