Mayhew 1947 March 15 Lake Merritt, Oakland, Alameda Co., Calif. of 29 species in all. On the trip home from Oakland to Modesto, Stanislaus County, California, the following species were seen: Cliff Swallow, Florida Gallinule, Red-winged Blackbird, Western Meadowlark, Great Blue Heron, California Shrike, and Western Mockingbird, bringing the total for the day to 36 species. March 29 Strawberry Canyon, U.C. Campus, Alameda Co., Calif. At 8:15 A.M. we passed through grass- land habitat, and then through a chaparral habitat, where Perognathus is usually found associated with Calif. Sage (Artemesia). Then we passed into a border woodland habitat, where white-footed mice + wood rats may be found, as well as skunks + weasels. On a return to the grassland habitat, a series of mounds, denoting the workings of a pocket gopher were found. A white - footed mouse nest (?) was found about 6' above the ground at the tip of a branch of a pine tree. One acorn was found in the nest, and since the nearest live oak was about 75 yards away, it had been carried quite a distance. The nest was composed of pine needles, various grasses + some horse-hair. Our route was from the north end of the stadium up the hill above the stadium & the road leading to the cyclotron, then south along the road to Strawberry pool, + back to the stadium on the south side of the canyon.