Other traditions tell of foul odors near the hill-crowning circles of stone pillars, and of rushing airy presences to be heard faintly at certain hours from stated points at the bottom of the great ravines; while still others try to explain the Devil's Hop Yard—a bleak, blasted hillside where no tree, shrub, or grass-blade will grow. Then, too, the natives are mortally afraid of the numerous whippoorwills which grow vocal on warm nights. It is vowed that the birds are psychopomps lying in wait for the souls of the dying, and that they time their eery cries in unison with the sufferer’s struggling breath. If they can catch the fleeing soul when it leaves the body, they instantly flutter away chittering in demoniac laughter; but if they fail, they subside gradually into a disappointed silence.