No supernatural. All phenomena are natural and observable.
No score under deaths. Violence plays in wind, fire, and mechanical ambience.
Fog discipline. Knee‑to‑waist; breath visible.
Light is motivated. Fire, sodium, halogen, dawn. No unmotivated fill on the creature.
Creature depiction is animal. No anthropomorphizing; intelligence shown via cause‑effect.
Dawn white at the end. Red/green porch bulbs are replaced with white in the final scene.
Chronology is linear. No flashbacks or cross‑cut timelines.
Finale visibility is earned. The owl is visible through firelight and air for ~20–25 seconds total, across emergence → glide → crash → confrontation → quiet.
Canonical Locks (2003)
Year: 2003 lock. No smartphones. Desk‑news inserts are SD 4:3 only.
Owl POV: super‑tele 700–1200 mm from above with micro‑yaws; no feathers/eyes in close.