More than 1,200 bison from Yellowstone National Park were rounded up and sent to slaughter over the last winter, the Associated Press reports.

The bison are killed when they wander out of park boundaries. The state of Montana is worried the animals will transmit a deadly disease to cattle herds.

The National Park Service estimates the Yellowstone bison population at 3,900, higher than the "target" population of around 3,000.

Get the Story:
Yellowstone park's bison population declines (AP 9/6)

Relevant Links:
The Inter-Tribal Bison Cooperative - http://www.intertribalbison.org
Buffalo Field Campaign - http://www.buffalofieldcampaign.org
Yellowstone National Park - http://www.nps.gov/yell

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