Bald eagle in the winter
A bald eagle sitting in a tree by the river
Bison in the snow
A bison lifting its head to look at the camera on a very cold and snowy day in Yellowstone National Park, Wyoming, USA.
Bison close up
The bison use their massive heads to push the snow out of the way to try to reach what’s underneath.
Bison forage through the snow
This huge bull elk was standing in the river, pushing snow out of the way with its huge head and antlers to get at the dead grass that it was feeding on.