I've had a Junco with white wing-bars hanging around.  I assumed it is just one of the uncommon Slate-colored that have this trait.  Today I managed to get a very rough shot of it in flight with tail feathers spread.  I count up 3 full white ones, with white on the 4th.  Obviously this would be extremely unlikely to be around this area, but 2 traits make me at least have to get some other opinions.  Not sure what else I could do to get some more "proof".  Looking for thoughts and appreciate it i