Journal 26 Apr. Berkeley Hills, Alameda Co., Calif. and captured 1 Coluber lateralis. Captured during afternoon 5 Sceloporus o. occidentalis and marked by clipping toes and with colored pencil. All lizards released. Top of hill partially mapped as part of special problem in daily activities and movements of Sceloporus. See species account for details of area. Weather: bright, sunny, clear with moderate cool winds. Other animals noted: Wren-tits, Bewick-Wrens calling from chaparral slopes, Turkey Vulture soaring overhead. Left area at 1700. (4 Sceloporus o. occidentalis) 30 Apr. Study area boundaries revised and entire area remapped, (see that species. One new individual marked. Tentatively it is thought that all specimens within area inhabit all parts of it. No movement checked and recorded yet but several individuals seen in several separated areas. Wren-tits calling from chaparral in canyons during entire afternoon. A single hawk, thought to be Sparrow Hawk, observed 1800 hovering and intermittently soaring in moderate breezes over Hamilton Gulch. Assumed