As deer mating season approaches, the Maryland Department of Natural Resources (DNR) is urging motorists to be especially cautious on the roads. The white-tailed deer breeding season, triggered by the shortening of daylight hours, known as the photo period, leads to increased deer movement across roads. This time of year, motorists may encounter unpredictable deer activity at any time of the day, as the animals are in search of mates.
Wildlife in general becomes more active in the fall as they prepare for the winter months, but the increased movement of deer on Maryland roads presents a particular risk to drivers. The Maryland DNR has advised that the peak time for deer movement runs from mid-October through early December, coinciding with the mating season, known as the rut.

“Peak deer movement in Maryland begins mid-October and lasts throughout November and early December, as bucks attempt to secure breeding opportunities,” said Karina Stonesifer, Director of the Wildlife and Heritage Service at the DNR. “This is the time of year to be especially cautious on the road and be mindful of deer activity while driving.”
Tips for Drivers During Deer Season
The DNR has issued several safety tips to help drivers avoid collisions with deer during this active time:
- Be alert during early morning and evening hours: Deer are particularly active during dawn and dusk, so it’s important for motorists to be especially watchful at these times.
- Avoid swerving to miss deer: If a deer is spotted in the road, the DNR recommends gradually braking rather than swerving. Swerving can cause drivers to lose control of their vehicle and lead to more serious accidents.
- Watch for following deer: Deer often travel in groups, so if one crosses the road, more are likely to follow. Drivers should wait before resuming their travel to avoid hitting another deer.
- Pay attention to deer crossing signs: These signs are placed in areas with frequent deer activity and should be heeded by drivers.
- Look for deer along the shoulder: Deer standing along the side of the road can unexpectedly dart into traffic. Slowing down and using a car’s horn to alert the deer can help prevent accidents.
- Stay mindful of other drivers: When spotting a deer, drivers should avoid abrupt stops that may result in a rear-end collision with other vehicles.
What to Do After a Collision
If a driver does collide with a deer, the DNR advises that they should immediately contact local law enforcement. The DNR also stresses that motorists should never approach a deer that appears injured or deceased, as these animals can react unpredictably and pose a safety risk.
Motorists should remain in their vehicles after contacting the authorities and await assistance.
Additional Risks During Deer Season
In addition to increased deer activity, other wildlife is also on the move in search of food ahead of the winter. The heightened movement of various animals means drivers must stay alert in rural and suburban areas alike. While deer pose the most obvious risk due to their size, smaller animals can also cause accidents if drivers swerve to avoid them.
During the fall season, the DNR encourages drivers across Maryland to reduce their speed, especially in areas with high deer populations, and to remain vigilant. Following these tips will help ensure a safer driving experience for everyone on the road.
Deer mating season may create risks for motorists, but with increased awareness and caution, accidents can be minimized. The Maryland DNR continues to emphasize the importance of staying alert, particularly during peak deer movement from mid-October to early December.
