Most Western backcountry hunters elk, mule deer, etc. from base camp start up the trail in the dark headlamp on low red mode, 1–2 hours before first light to beat other hunters, get into prime glassing spots quietly, and catch animals moving at dawn without bumping them later.
Waiting for daylight means missing the best window elk often bed up high by shooting light, plus you risk spooking game while hiking in visible. Headlamp pros: hands free, safe navigation on sketchy trails, maximizes hunt time. Cons potential to alert animals if bright white light sweeps wrong use red to preserve night vision, dim it, and grizzly country adds caution many still hike dark but stay alert noise making.