My Skywatch post is below this one but if you don't feel like skipping you can use this one was SkyWatch since this is skywatching too. The bird just got in the shot.
I think this is a yellow rumped warbler. I almost couldn't identify it then at the last minute I saw a photo of one that looked this this. At first I thought it was another goldfinch but the goldfinch has a solid yellow breast and this one just had patches of yellow. Please correct me if I still have it wrong.