Bisons are herbivores who eat up to 60 pounds of grass per day. Unfortunately during the winter, grass is buried under many feet of snow. Bisons swing theirs head from side to side to shuffle the snow aside. Its hard work for not many calories.
|Photo Location:||Yellowstone National Park, Wyoming, United States of America|
|Camera:||Canon EOS-1D X Mark II|
|Copyright:||© Francois Aspesberro|