10 minutes later...
She came back!
And brought a friend!
And even showed off for the camera!
Now that I've had a chance to look through my field guide, I've discovered this sunshiny bird is really a male goldfinch with winter plumage! Who knew they changed colors in winter? I certainly didn't.
This just goes to show you how amazing the bird world is. Every day I'm finding new surprises in my backyard and learning something new!