Weston 1945 Zonotrichia leucophrys March 12 - West End Elk Valley, Marin Co., California At 7:30 p.m. 6+ adults (dark crown stripes) foraging on ground near ocean end of valley. Occasional songs could be heard from nearby. Were on ground in short vegetation (grass + other plants). This species is active this evening later than most of the other diurnal species.