After some 200 hits on this picture: http://www.pbase.com/image/29984263

Two people suggest Bushtit. Rule that out. This bird is larger, I recall
from observation, but also the long tail and larger bill are inconsistent
with a Bushtit.

Gray Jay. Not often seen in the city. The bird pictured is smaller,
estimated 7 inch length.

Immature Starling. No, tail too long and the bill broader and shorter.

Phoebe. Size is right. Which Phoebe?

Bill F.