I took all these photos at Neary Lagoon in Santa Cruz, California on December 1st, 2018 (trying to catch up on photo processing). My best guess for the first 2 is Bushtit, but the coloring doesn't seem to match what I see in my books. I assume the next two are sparrows, but I'm struggling to figure out what kind as I often do. My Merlin app suggested the last one might be a Yellow-rumped Warbler, but I'm unsure.
I would be grateful for any identification help.
I would be grateful for any identification help.