900 bison at Yellowstone to be shot, slaughtered or quarantined in deal in reduce herd

Officials have agreed to allow as many as 900 bison from Yellowstone National Park to be shot by hunters, sent to slaughter or placed in quarantine this winter in a program that seeks to prevent the animals from spreading a disease to cattle.

An additional 200 bison among the park’s more than 5,000 bison could be captured or hunted in the late winter if those numbers are met, federal, tribal and state officials agreed in a meeting Wednesday.

Bison routinely leave Yellowstone and head north into Montana each winter, raising concerns that the animals could spread brucellosis to cattle. Brucellosis is a bacterial disease that can cause cows to abort their calves. The disease can spread to people but is rare in humans in the U.S.

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Yellowstone National Park, WY - JULY 30: A bull bison is seen in the mixed age forest that partially burned in 1988 on June 30, 2018 in Yellowstone National Park, Wyoming. The fires in 1988 burned 793,800 acres, 39% of Yellowstone's 2.2 million acres

Elk have spread the disease to livestock but there are no documented cases of bison spreading brucellosis to livestock in the wild, the Bozeman Daily Chronicle reported.

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Yellowstone currently has around 5,450 bison, on the high end of recent counts, according to park biologist Chris Geremia.

Removing 600 to 900 bison this winter should cause the population to stabilize or decline slightly but increase back to around current numbers after spring calving, according to park officials.

Several Native American tribes and the state of Montana separately administer bison hunts outside of Yellowstone National Park.