To tell you the truth, I don't know what made these prints and smudges on the outside glass door to my house. I'm pretty sure they're not human (I had recently cleaned the glass, as noted by the streaks), and they have a three segmented print suggestive of an insect. Perhaps a moth that was enraptured by the glass? Then again, maybe they're the mark of an alien left over from a Twilight Zone episode. A friend suggested that the recent floods in old Ellicott City released a relative of mothman (https://en.wikipedia.org/wiki/Mothman), but I haven't seen Mulder and Scully, so I think I'm safe. "The truth is out there"...

Best wishes,

     Bob