American Bison (Buffalo) (2)

These are are photos of American bison, also called buffalo. The pictures were made at the National Bison Range in Moise, Montana, and in Yellowstone National Park.

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A frosty bison and rub tree at sunrise on a cold May morning.

An American bison, or buffalo (Bison bison), rests on a ridge in Montana's National Bison Range.

An young (first year) bison pressed against its mother in Yellowstone National Park.

An adult bison bull in Yellowstone's Hayden Valley on a sunny September day.