Yellow Throated Vireo

I was watching a little Carolina Wren from the window when suddenly a blue bird landed right next to it. And, seriously, this just never happens. By the time I grabbed my camera, the bluebird had flow into a nearby tree. I got a few shots and then looked to my right and saw this little guy. I knew I had never seen one before, but didn't know what it was. He hung around the house all day, but the weather was so bad I could only get pictures of him from inside - hopefully tomorrow it will not be snowing (which is ridiculous to begin with) and he will still be hanging around. I guess posing with the bluebird would be too much to ask...