Marshall, 1942 Dryobates villozus U.C. Campus, Berkeley, Alameda Co., Calif. July 10 At 8:30 am heard loud "chink" call note (single) from cypress & Eucalyptus at north-east side Greek Theater. Traced birds to laurels in little ravine at base hill where Cyclotron is called there also downieess, latter (at least one) flew off towards gp. Theater, but loud calls kept coming from laurels. Turned out to be 2 hairies - large size, loud "chink" call, white outer tail feathers, whining call all on same pitch, loud tapping. Rather wary - moved on ahead of our 113 group - once flew across grassy hill to another grove Eucalyptus, then bush - typical undulating flight. Followed them for about 1/2 hr. they worked thru Eucalyptus to Cyclotron, then in grove fruit trees & grove pines. In a given grove, worked away from us, tree to tree then on to next grove - both always keep together. Finally flew north from top hill and alighted in willows on a s spur of N. Strawberry Creek.