southwest alaska is one of the best places in the world to catch salmon. there are also lots of brown bears. they come to eat the salmon, as well as berries and other plants. bear watching is a popular tourist attraction at katmai national park and preserve. this area is also home to a number of caribou herds. more western aleutian islands have no mammals larger than a fox. in the summer, lots of birds fly up and make their nests on the tundra here. a lot of the aleutian islands have lots and lots of seabirds on them.