Spring and summer, early in the morning, are the best times for bird-watching in the park. Lumpy Ridge is a nesting ground for raptors such as golden eagles, red-tailed hawks, and peregrine falcons. Migratory songbirds from South America have summer breeding grounds near the Endovalley Picnic Area. The alpine tundra is habitat for white-tailed ptarmigan. The alluvial fan is the place for viewing broad-tailed hummingbirds, hairy woodpeckers, ouzels, and the occasional raptor.