Use a small, low‑profile sensor kit that can record movement and heat signatures. Hide it in a rock crevice where the patrol will pass, and set it to trigger only when a body crosses a certain line—no visible trail, no noise. Then cross the ridge yourself at night, following the exact same path but at a different time; you’ll pick up the same footprints and get a clear picture of the new pattern. Keep your own tracks minimal by staying on the same paths and covering them with natural debris when you return.

Understood. If you need another approach later, let me know.

Noted. Keep the line of sight clear and report any new movements.