Dark-eyed (Oregon) Junco

At this time of the year in Oregon, when the weather is often blustery and wet, Dark-eyed Juncos are a common visitor at feeding stations. This provides a good opportunity to study the characteristics that distinguish the subspecies of this complex group. This one appears to be a typical "Oregon" Junco, although the whitish line below the eye does not seem normal. I've never noticed it on a Junco before.