Pair (pictured) in/on dead tree. Maybe nesting/feeding in that hole, but didn't hear any chick sounds.
I think? Next to woodland creek.
Many singing this day, but this was the only one I could get a photo of. So elusive, but their song is my fave. :)
From my research, this could also be L. Nanus or varicolor
Looks like Tidy Tips but no white tips?
gowing in dense chinquapin, huckleberry. 8 to 12 feet tall.
D. Jokerst, M. Hannibal, N. Morgenstein, C. Brand, S. Whelan
Caterpillar on Nicasio Ceanothus (Ceanothus decornutus).
On hayfield tarweed (Hemizonia congesta).
A pair of woodpeckers. Spotted towhee and other birds in background.