Office Birdwatching

I've been contemplating the best social media context for tracking the birds that visit my newly-refurbished feeders. (1 Niger seed, divided feeder that gets a mixed seed on one side and either safflower or cracked corn on the othre, 1 hummingbird feeder) Since I haven't been posting here very regularly in the last few months, it felt like a good place. (Also easy to tag the posts for later review.)

My office birdwatching is slightly handicapped by the fact that I'm wearing my computer glasses, so I may not always catch minor details. On the other hand, I'm a semi-experienced birder and pick up a lot from general shape and behavior. And I'm using a California-specific guide to confirm. So here goes:

Anna's hummingbird (checked out the feeder but hasn't actually tasted yet that I've seen).
Plain titmouse (very evident by the even gray color and crest)
Chestnut-backed chickadee (chestnut back, duh! and obviuos black cap)
a trickier one: smallish, gray, pale eye-stripe, tail is medium-long. Bigger than a sparrow or warbler, beak didn't look finch-like. Not sure.

ETA: Mr. eye-streak is back and this time definitely had a wren-cock to the tail. So my evaluation is narrowing to a Bewick's wren, based on the prominence of the eye-stripe.

There's something very non-descript grey with a finch-like beak currently, but not clear enough to try to ID.