Sorry to come to the party so late! Haha! Juvenile red-tailed hawk, without a doubt. Just saw one today, in fact, along with dozens of other juveniles: western kingbird, Bullock's oriole, Brewer's blackbird, American robin, house wren, Bewick's wren, and black-billed magpie. Quite a day for fledglings on my bird survey!
Thanks for the ping, Jaz!
I'll Freepmail you when the breeding bird survey season ends.