Be especially cautious at dusk through the early evening hours and in the hours prior to sunrise when deer are most active. Drivers encountering deer on the roadways should flash their headlights at the deer and blow the horn to scare them away. If you hit a deer, don't touch it. If it's alive, it may be dangerous. Call the police.
Deer are unpredictable.
Buckle your safety belts. Most people seriously injured in deer crashes are not buckled up. Dirty, pitted, or fogged windshields reduce your already limited night vision and increase the glare of oncoming headlights. Your ability to collect needed information is severely reduced at night. Time is needed to recover from exposure to bright lights.