In Lapland, where reindeer herds are kept as livestock, yet graze freely most of the year, a new technique is being used to reduce the number of reindeer struck by cars at night. I cannot make the Finnish Sami language article translate into English, but according to redditor og_nichander, the antlers are sprayed with a reflective material that only shows up when headlights shine on it. Therefore, you won’t see eerie herds of antlers moving in the night – unless you are about to hit them with your car.
I wonder if it is something we could do in the New Forest – maybe paint stripes onto the wild donkeys and ponies?