With mist nets and ground traps, we sampled the spring and fall flow of landbirds migrating along Mission Ridge, just southeast of the south tip of San Francisco Bay. Few such studies have been conducted on landbird migration along the Pacific coast of North America. In northern California, the most comprehensive of these is the annotated field list prepared by McCaskie et al. (1979), which graphically presents the relative abundance by months—hence, the timing of migration—of all species known from that area.