By Matthew Brown
Billings, Montana (AP)

Sixteen more bison that migrated to the boundary of Yellowstone National Park were transported to slaughter and roughly 90 more were expected to be shipped out in coming days, under a program to prevent the spread of disease to livestock.

With more than five dozen animals already sent to slaughter in early Febuary, the new shipments will push to more than 170 the number of bison captured and killed by government agencies this winter.