Willie, the Cat, nearly got this little baby, but I saw two tiny bird feathers (never a good sign, huh?) and the hubs found her quickly, stunned but alive.
Located a nearby wildlife rescue with two clicks (& a list of hundreds throughout California -- how wonderful people are!) and dropped her off for antibiotics (because of "the cat," they said) and recuperation in beautiful Corona, CA until s/he can be released back into "the wild."
I thought it a baby hummingbird because I feed a little family of hummers (usually just one guy) and, well, because it looks like a baby hummingbird. It is, however, not a hummingbird; it's a baby Black Phoebe, fascinating little birds (won't get much bigger, usually found near water -- ha!)
The rescue folk will update us on the bird's condition in a couple of days and were optimistic about its chances.
I'm getting a bell for Willie's safety collar (he's not much of a killer but he is a cat and I'm not interested in any more partially harmed birdies...) and sending out positive thoughts for baby Phoebe (named for the sound of their cheeps, I've read!)