K Dixon 1950 Colaptes californianus Jan. 12. Univ Calif Campus, Berkeley, Alameda Co., Calif. Clear sunny morning after 2 rainy days. 9:25 AM. At this time I noted a Red-shafted Flicker perched on the concrete wall of Life Sciences Bldg. (west-facing wall, above 4th story windows). The bird was propped against the wall by its tail in the same fashion as when moving up a tree trunk. This flew in short jumps to different sites at this level on the wall apparently inspecting the rough surfaces for food. No foraging motions seen although the bird peered about considerably from each of the 5 or 6 positions taken. After about 1 1/2 minutes, the bird flew to an Atlantic Cedar at the NW corner of the Museum. (if the wall had been warmed by the mid-afternoon sun, foraging might have been successful, for a Black Phoebe often feeds at that site in the afternoons). Jan. 29. NE slope San Pablo Ridge, Contra Costa Co., Calif. Clear, cold, calm. At 9:00 AM I saw (in the course of about 2 minutes) 8 Flickers fly up from Baccharis at lower edge of brush covering on a slope, all 8 being dispersed over a linear distance of not more than 50 yards. Two birds flew simultaneously, the others singly. All flew from near ground, perhaps from bases of shrubs (2 days ago I saw 2 fly up from nearby ground). Soon after they flew toward old cabinsite (from slope E of there) I heard "weck-up" calls. About 20 minutes later four were in flight around tall cypress tree there, giving whinny call and soon dispersing. At 7:45 one flew up from ground beside a Baccharis shrub and another flew from an upright branch of the shrub about 2 feet above ground. Shortly afterward I saw a male and a female together in the top of a Phormium 50 feet downslope.