I heard what sounded like an old wives' tale some time ago: If you are driving along a stretch of road with a moose warning, using headlights on long/high beam even during daylight will warn moose off the road.
Seeing as a collision with a moose can be fatal to both parties, I'd like to take any precaution that I can. Incidentally, an answer to the linked question relates a tale of a moose reacting to a camera flash during daylight.
So, does this particular precaution actually work?