 The white animals, this is way above us. For the several tribes who revere American bison, the calf's appearance was both the fulfillment of a sacred prophecy and a message to take better care of the earth. Yellowstone Park officials have no record of the white bison being born in the park previously. Park officials have been unable to confirm this month's birth. Aaron Bratton, who captured images of the white calf, looked for it in the days after its birth but could not find it.