I looked this one up and I think I've identified this bird correctly. Please correct me if I got it wrong. This looks like the photos I've seen of a Lesser Goldfinch. One of the trees at the lake were full of these but it was too far for my lens. This one however, had flown to a tree where I was standing. Why don't they ever land where the lighting is perfect and low enough so I can get sharper shots? Still, they were nice enough to post. Look Ma, I caught me a bird! :-)
This one shows the feather pattern on its back:
