Why are the caribou in Idaho and Montana endangered?
The woodland caribou in that region live in old growth forests. They do not migrate very far between their summer and winter ranges (less than 40 miles, in some cases), but they are very sensitive to human disturbance and to forest loss. Woodland caribou do poorly when forests are fragmented into small areas by roads or by logging operations. As human activities increase, woodland caribou, and other animals sensitive to disturbance, have disappeared. Only a few areas in the United States still support woodland caribou, and the animals are endangered in these areas.
