Bison

Commonly called “buffalo”, bison are the largest land mammals in North America. Bison were hunted to near-extinction in the 1800s. Today bison are making a comeback and Defenders is helping to make this a wildlife success story.

Read Background and Recovery

Speak Out for Yellowstone Bison

America's last free-roaming wild bison are being slaughtered on a scale not seen since the 1800s. And hundreds more are slated to be killed when they range outside Yellowstone National Park's boundaries.

Act Now for Yellowstone Bison

In the Field

Defenders of Wildlife is: working with Indian tribes to restore and increase bison herds on tribal lands; working to restore and increase bison herds on public lands across the Great Plains.

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Management and Policy

Defenders of Wildlife is working to end the slaughter of bison near Yellowstone National Park.

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