They are chiefly a nocturnal animal but may be abroad some during the day. Cougars, like bears, are good tree climbers. They usually live in among rocks or small caves where they rear their young until they are old enough to go out on their own. Kittens may be born in any month of the year and there may be anywhere from 1 to 6 young in the litter. When newborn, the kittens have black spots on their yellow brown coats and are not easily seen in the vegetation.
Cougars are carnivores, as are all cats.
They feed largely on deer, but will also take rabbits and rodents of various kinds. The mountain goat in Olympic National Park is not a native animal. The ancestors of the present population were captured in British Columbia, Canada, and in Alaska and were brought here during the late 1920's. Originally there was a total of twelve released in the Olympic Mountains. Now, if you are lucky enough to see them, you might find that there are that many in just one herd.