Yellowstone has been called America’s Serengeti, a last wilderness ecosystem where large animals such as bison, wolves, coyotes, elk, and big horn sheep roam the plains, mountains, and river valleys. This amazing setting offers many opportunities to observe and photograph wildlife. For those brave enough to venture out in the extreme cold of winter, these animals can be seen in solitary settings, away from the summer crowds of people.
A big horn sheep searches for vegetation on the side of a hill under a deep blanket of snow.
A coyote guards the last remains of a recently killed swan (feathers on the ground), looking to salvage the last remnants of a meal.
Coyote and bison cautiously eye each other on an open plain.
A coyote\'s winter coat is warmly lit by afternoon sun against a white backdrop of snow.
A coyote carefully crosses the park road.
A frontal view reveals a quizzical gaze and the beautiful curving headgear of a big horn sheep.
The graceful silhouettes of a mother moose and her calf crossing a snow covered field.
A bison in deep snow grazes on vegetation.