White throated sparrows are here all winter. As well as Harris's.
Others are hard to get pictures of, but I was lucky to get close to a LeConte's a few times, They hide in the grass mostly (click the photo) :
A Savannah accidentally posed in front of a bit of sunflower, giving him a crown:
Another Savannah, similar striping to Song Sparrow
Vesper Sparrow and below that a Hermit Thrush I found while looking for the sparrows:
And Clay-colored sparrows from last spring