1966 VP Rearden Sept. 17 Bulldozer working on the Tilden study area. About 1/4 of the area completely scoured (lower right looking from road) after clearing the 2nd horizontal trail. All remaining sequoials have been disbled. Sept. 27 drove around in the country east of the San Pablo reservoir looking for barn owls. Several "good" barns and old buildings but no pellets or signs of owls. One rancher in a "perfect" location said he hadn't seen any owls for years. Also no bat sign. Forgot to note that morning of Sept. 18 Carol and I counted >47 cultures in a eucalyptus tree at the south end of the San Pablo Reservoir! Oct. 2 Heard first golden crowns. Oct. 9 Put up a barn owl nest box on Coleman property in Orinda. Oct. 10 At 4:30 p.m. set out the upper calver line on my study area in Tilden. The lower line has been mostly full-dozed away for the new golf course. Bulldozers still working, but probably for eroding away so that they will not affect the mine. No mice anyhow, saw no runways, no nests, no urine whitewash. One black cat dead on road near the sequoias, one sparrow-hawk hunting over the area, 2 red-tails sparring in air, and 1 deer. Fog coming in as I was setting. Oct. 11 A.M. overcast. Traps held 1 Rattera. P.M. traps held nothing. Saw on the area 1 cat (black with brown saddle). Picked up scats on the part of the area not bulldozed.