Nearly 400 bison were pushed back into Yellowstone National Park on Wednesday, topping a single-day record for government agents working on the park’s western border.
Montana Department of Livestock officials said 396 bison were hazed into the park and 50 more may be pushed back today.
On Tuesday, 37 bison were captured and tested for exposure to brucellosis, the contagious disease that government officials worry the bison may spread to nearby cattle.
Of those 37, 16 tested positive for exposure and will be sent to slaughter, 18 tested negative and were released and three calves were taken to an experimental quarantine facility near Gardiner, according to Karen Cooper, a spokeswoman for the Department of Livestock.