Morgan, what a cutie that Red Fox Sparrow is!
I've never heard of that one but I love sparrows and that little one has some pretty markings. I don't see them very often down here but we used to get the tiny Chipping Sparrows in the winter months and sometimes the little House Sparrows too when we lived in Daytona Beach. I'm not sure if any sparrows make it this far south in the state. These are old photos from a few years ago.
Chipping Sparrow ................................. House Sparrow