Fall Spectacular: What's That Sound? Where To Listen To -- And Look For -- Wildlife in the National Parks
In the fall, animals and birds prepare for winter. Bears eat constantly to fatten up before they slow down. Many birds are already on their migration path. Elk and other ungulates are preparing for the mating ritual, the rut. Take a look -- or stop and listen -- in many national parks this Fall and you'll catch a glimpse of this autumnal spectacular.