1277 6. One or more singing at Warm Springs. Beyond Santa Clara-Alameda Co. line turned east on Jacklin Road--few houses--; south to Calaveras road , west on this road toward Milpitas. 7. Several singing 1.3 miles east.of Milpitas. None heard at Milpitas. South of Milpitas turned S.E. on Capitol (o?) Ave. leading to Alum Rock Road via Berryessa. Although I have previously- ly seen and heard mocking birds along this road, none were encountered until I turned E (Really N.E.)on Alum Rock road. 8,9,10. (3 stops). There were several singing along this road for the next half mile. Came out by Penetencia Creek (Evans Road ?) leading back to Berryessa. 11 One singing about 1 mile E. of Berryessa. Turned N. on Sierra Road to Calaveras, E. and N. through the hills to Livermore, where, since there was no wind, I thought mockinbirds "ought" to be heard. ( 3:30 P.M.). 12 Several in a park (surrounding library ?) at Livermore. Turned S. to Pleasanton where no birds had been located on previous visit, but found none, although this town would appear to be an ideal place for them--in fact about the most attractive of all. On the 24th. the survey was continued to the north and east. None heard in Oakland and Berkeley. None at Martinez. 13 First (several) at Concord. 14 Next on road to Mt. Diable about 3 miles from Concord. None at Walnut creek, Alamo, Danville, San Ramon, Dublin. Had another try at Pleasanton, making a thorough listening survey through the residencepart of the town. They "ought" to be there! None. October 25th. About noon Rhody showed what appeared to me to be the first evidence of concern about hawks when none were actually in sight. He had been to the cage for meat and was following me to the shop, but instead of continuing in the open as usual, ran quickly from bush to bush, diverging from his course in order to seek shelter. He did not, in fact, follow all the way, so I went to him with a mouse. This he took from the palm of my hand, but allowed to escape and made only a perfunctory effort to find it. When I left him he was sitting quietly in the glade under the bushes. About 1 P.M. Brownie was getting worms from me in the glade. Rhody saw what was going on and came for his share, B retreating to a branch behind my shoulder. Rhody frequently glanced up at him, and whenever B made a quick movement (which was seldom) R was startled. R finally wandered off. So did B. About 1:30 I was looking for both of them when a hawk, thought to be a female Cooper, darted swiftly along the driveway close to the ground. I renewed my search at once for B and R, and strangely enough, found them both in the open quite composed. It was as if both had been aware of the presence of a hawk in the vicinity and its appearance and departure had relieved the tension. Brownie now put on a fine performance of sing-digging in the