W.C. Russell M.V.Z., Berkeley, Calif. Feb 20 1960 There were dozens of new mounds in Possio's pastures and they all seemed to be drying at the same rate. Of course this is a rough way of trying to tell when the animals worked. But it appeared that most of them were made roughly at the same time. From the amount of drying it looked like they must have all worked during the previous evening, just as they did at the Swan Ranch. Some observation again, there is a rhythm to the working by the whole population. It is not an individual activity. In a pasture 11 mi. W Petaluma I took a color slide of a mole nest on top of the ground when it had been dug up by a Badger. Looked to see when the nest was in relation to the mounds in the area. It was roughly centrally located with strings of mounds radiating out from it. Fresh working in bottom of badger excavation so guess the adult mole wasn't taken. In fact I don't see how a Badger could get them as they would scoot at first sand digging.