M.F. Smith 1993 JOURNAL El Penasco, ~5 km N of Maldonado, Depto, Maldonado, Uruguay Nov. 17 We set traps for tucos in the vicinity of 1 km W of the mouth of the Laguna de Rocho, in Depto, Rocha. The first field we set in was very much like trapping thomomys in the US, although with very sandy soils. The mounds are similar, as is the construction of the burrows and the method of setting the traps. Additional pitas were closer to the ocean next to sand dunes. The weather was much better on this day. We saw lots of birds near the Laguna de Rocho, including jacanas, cacachin gulls + black necked swans. Lots of migratory birds came to the lagoons and marshes in this area. We also saw 3 Rheas americana in a field during the day. Driving back to the house we saw nutria near the edge of a pond, and cavia running across the road. The cavia are very dark in color, somewhat larger than stenops. There were many of them running across the road and along the edge of the road in the grass. When we got back to the house we packed up as quickly as possible because we