sparrow ID

I took this photo Saturday morning, in central Kansas, next to a shallow salt marsh. After looking at various sources, I'm guessing either Song Sparrow or Swamp Sparrow, both of which are possibilities in the fall here. I'm not sure it is heavily streaked enough for Song, even though that is the most likely ID. Thanks in advance.

I agree with Cindy. Swamp sparrow.

Drew

Thanks Cindy and Drew for confirming a lifer for me :).