Then, looking out the window after dark, I saw these.
(Damn doorway! I couldn't see it when I was shooting.)
Focusing in the dark isn't easy. AI Servo wouldn't lock on, so I used MF & shifted a bit for each shot.
That's no doorway - and no wonder you couldn't see it - it's a ghostly portal that the deer use to teleport in near the tree!
The leftmost deer is just exiting, as shown by the streak of red light!