K DIXON Hylocichla ustulata 1951 May 13 Davis, Yolo Co., Calif. - cool cloudy morning; calm. In an old residence area of widely-spaced houses with shade and fruit trees I heard call notes of this thrush at 9:00 am. At least 2 Swainson Thrushes present, one calling more persistently than the others. A few minutes later I heard the full song repeated several times. (I did not hear this song at Berkeley during the previous week). Cedar Waxwings and Robins present, wintering Zonotrichia not in evidence. August 2. Univ. Calif. Campus, Berkeley, Alameda Co., Calif. One foraging on lawn beneath oaks in late afternoon call note "whick" heard from another bird nearby. Aug 16 Shortly after 8:00 pm (dusk) a Swainson Thrush flew up from ground beneath oakes S of L. S. B. Another called "whick" from south of path (N bank of creek). The first answered whistler mimicking its terse (whisked call. Aug 24 One in oak S of Life Sci. Bldg. at 5:00 pm - silent Sept. 9 - two heard along Strawberry Cr., Alameda Co., Calif one S of Botanic Garden, other in Elders S of Poultry Farm 10:00 a.m. Sept 12 Univ Calif Campus, Alameda Co., Calif. - One calling in tree along creek W of Sather Gate at 1:30 pm.