and, when hunting, usually runs after prey from under cover. It may leap to catch insects, and commonly batters certain prey against the ground. Because of its quickness, the roadrunner is one of the few animals that preys upon rattlesnakes; it is also the only real predator of tarantula hawk wasps. Behavior and breeding The roadrunner usually lives alone or in pairs. Breeding pairs are monogamous and mate for life, and pairs may hold a territory all year. During the courtship display, the male bows, alternately lifting and dropping his wings and spreading his tail. He parades in front of the female with his head high and his tail and wings drooped, and may bring an offering of food. The reproductive season is spring to mid-summer (depending on geographic location and species). The roadrunner's nest is often composed of sticks, and may sometimes contain leaves, feathers, snakeskins, or dung. It is commonly placed above ground level in a low tree, bush, or cactus. Roadrunner eggs are generally white. The greater roadrunner generally lays 2–6 eggs per clutch, but the lesser roadrunner's clutches are typically smaller. Hatching is asynchronous. Both sexes incubate the nest (with males incubating the nest at night) and feed the hatchlings. For the first one to two weeks after the young hatch, one parent remains at the nest. The young leave the nest at two to three weeks old, foraging with parents for a few days after. Thermoregulation During the cold desert night, the roadrunner lowers its body temperature slightly, going into a slight torpor to conserve energy. To warm itself during the day, the roadrunner exposes dark patches of skin on its back to the sun. Indigenous lore The Hopi and other Pueblo tribes believed that roadrunners were medicine birds and could protect against evil spirits. Their unusual X-shaped footprints are used as sacred symbols to ward off evil in many Pueblo tribes—partially because they invoke the protective power of the roadrunners themselves, and partially because the X shape of the tracks conceals which direction the bird is headed (thus throwing malignant spirits off track.) Stylized roadrunner tracks have been found in the rock art of ancestral Southwestern tribes like the Anasazi and Mogollon cultures, as well. Roadrunner feathers were traditionally used to decorate Pueblo cradleboards as spiritual protection for the baby. In Mexican Indian and American Indian tribes, such as the Pima, it is considered