Flying Squirrel?

Some people are surprised to learn that Fairfax and Loudoun Counties are home to flying squirrels.  We have TONS of them around, but to see one, you have to be in the right place at the right time in the night. They are strictly nocturnal and should not show themselves often in the daytime.

I recently came upon this image while checking on of my camera-traps.  It's in Fairfax County, VA and the time and date stamp are correct.  The image below the one containing the mystery critter is a "blank" image that does not contain any animal.  This is included so you can better tell the parts of the animal awhile comparing it to the "blank" image.

What do you think?  Is that a flying squirrel that got a bit blurry?  Is it a moth, bat, insect on the lens, a leaf falling, or a bird?  I think I know what it is, but need some other opinions to convince me.