47 Journal RE. Johnson 1968 May 3 Berkeley to Livermore, California A foggy cool day in Berkeley. Left for Livermore at 11:40 AM & arrived at 12:20 PM. The sky was clearing at Livermore. Drove out the road to the US Veterans Hospital & beyond this to the new dam (Del Valle Dam) on Arroyo Mochi Creek & up the reservoir floor on a dirt road for 2 miles. I stopped in an area where the wash bottom was 200 ft wide & dotted with ponds & broad benches on either side were covered with grass where cattle were grazing. The main excuse for this trip (if an excuse is needed to get some fresh air) was to trap ground squirrels for use in Physiological Ecology Lab. No sign was seen of them but the area abounded in birds, live birds in contrast to the mothball fleet of MVZ. Six Turkey Vultures fed on a cow carcass partly submerged in one of the large ponds. Later they circled overhead briefly, perhaps taking flight because of my approach. Four sat on the grassy bench across the wash & two of these appeared to go into battle, making postures with wings outspread & facing each other. Two Red-tailed Hawks circled near each other over the grassland & one gave chase to the other. Then the pursued one circled east & the other west to join another hawk. Together they circled peacefully up hill over oak grasslands. In the distance a Calif. Quail [illegible] of a Mourning Dove could be heard.