This little sparrow flew in through my open patio door and could not get out again. I captured it and took this quick photo. I realize more photos would have been helpful, but it was so stressed I didn't want to keep it any longer than necessary. I have seen this species, at a distance, a number of times this year. They are a bit shy so I've not managed to get a good photo with my regular camera. It looks very similar to a Savannah Sparrow but has two white stripes on the top of its head instead of one. Their call is similar to a Grasshopper Sparrow but with a deeper pitch so it sounds more like a true buzz. Can anyone help me identify it?