Rattleridae May 6 Far Colorado. Enormous quantities of Rattleridae droppings at the base of a thick stone corral at the edge of a closely cropped turfry pasture (cows, horses, geese, turkeys). The corral was at the edge of the flat where it met the never-breaking hillside on the east side of the river. 5 steel traps and 20 MS caught 3 young-adult to adult Rattleridae. There was absolutely no cover away from the rock wall. The rocks along many of the well-worn cliffs were covered with excrete - not always on the