I had the two subject birds this morning at Miller Knox Regional Shoreline
near the Ferry point parking lot.
The Lark Bunting was with a large white-crowned sparrow flock here:
First seen briefly at ~9:15am and then I just had it again at 11:17am
before it flew towards the eucalyptus and disappeared again into some dense
tangles. The bird should still be in the area, but may require quite a bit
of persistence as it took me two hours to refind it.
I found the Tennessee Warbler around 9:20am with an orange-crowned warbler.
But never saw it again after the initial sighting. The warbler was in the
same area as the Lark Bunting and hanging out in fennel.
I will upload more photos and details to my ebird checklist later.
Good luck to any who look for these birds!
Pt. Richmond, CA