Hmmm, taking into account that I'm pretty much useless at sparrows, I'm pretty sure this is an Ammodramus, and of those... I'd say Baird's. On a hunch. Mostly due to the nice white supercilium and lack of orange I'm seeing. Take it all with a grain of salt, however.
::EDIT:: There I go, taking a stab at an idea without looking at a range map. I dunno, I still say it looks like an Ammodramus, but Grasshopper would be the closest thing to you, perhaps a juvenile.
Total birds seen: 205
Latest lifers:
Brown Creeper, Field Sparrow, White-crowned Sparrow
Favorite lifers:
Black-billed Cuckoo, Reddish Egret, Wood Stork
