Sorry for the late report, but Lori Stoneman and I had a couple of Lawrence's Goldfinches along Elderberry Trail at Las Trampas Regional Wilderness on Friday May 15. They were flying back and forth from an oak next to the trail to another one further up the hillside. There were also singing Cassin's Vireos in the same location.
Approximate location: 37°48'44.5"N 122°02'43.8"W
Elderberry Tr, San Ramon, CA 94583