Mystery Bird

A bird that was photographed in Tennessee that appears to be a partial albino has birders guessing. The person who observed the bird said it was about 6" in length. It did appear
to have a tuft but does not look exactly like a tufted titmouse. It was spotted near a bird feeder. Do you have any ideas? So far some of the top birders have suggested tufted titmouse, Carolina chickadee, Junco, blue jay, or blue-gray gnatcatcher.

I was thinking either titmouse or chickadee myself.