Both golden and bald eagles nest within the park. Year-round species include ptarmigan, grouse, ravens and a variety of owl species. Grizzly bears are also called brown bears, and are found throughout the Park and Preserve. The bears' height at the shoulders ranges from about 4.5 feet to six or seven feet, and they weigh between 300 and 1500 pounds. When standing they measure up to nine feet.
Grizzlies are omnivorous.
Brown bears depend a great deal on salmon for food. Brown bears can conceal themselves remarkably well in the low brush along hill sides. Bears are actively hunted throughout the region and tend to be shy around people. Although they will normally not attack a human, they will defend their young or their food if approached too closely. They have an excellent sense of smell, good hearing, and are extremely powerful.