Motorists are urged to be especially attentive during morning and evening commutes when visibility may be poor, according to experts from the state Department of Environmental Protection’s Division of Fish and Wildlife.

Deer are involved in thousands of collisions in New Jersey every year, with as many as half coming during the fall mating season, known as the rutting season.

An adult male deer can weigh 150 pounds or more, and can cause dangerous accidents whether on local Parsippany or Morris County roads or on high-speed interstates that crisscross the region, such as I-80, I-287 and I-78.

“People should always be alert for deer when driving, but especially at this time of year, when deer can suddenly run onto any roadway, from busy highways to country roads,” said Division of Fish and Wildlife Director David Chanda. “One moment of inattentive driving can result in serious or even life-altering consequences.”

During rutting season, deer are most active in the very early morning and around sunset, when visibility conditions can be very difficult. This is when bucks are most actively pursuing does.

Using caution while driving will become even more important when Daylight Saving Time ends November 6, causing commutes to align with periods when deer are most active.

For motorists, low levels of light and sun glare can make it very difficult to see deer that are about to cross the road. Moreover, multiple deer may cross the road at any given moment, usually in a single file.

Peak rutting season for deer in New Jersey runs from late October, throughout November, and into mid-December in all areas of the state, beginning earliest in northern regions.

Motorists are encouraged to inform the Department of Transportation of dead deer they find along the state highway system, and can share information by clicking here.

Municipal and county governments are responsible for removal of dead deer from roads they maintain.

The following tips are offered to help motorists stay safe:

The following tips can help motorists stay safe during rutting season:

• If you see a deer, slow down and pay attention to possible sudden movement. If the deer doesn’t move, don’t go around it. Wait for the deer to pass and the road is clear.
• Pay attention to “Deer Crossing” signs. Slow down when traveling through areas known to have a high concentration of deer so you will have ample time to stop if necessary.
• If you are traveling after dark, use high beams when there is no oncoming traffic. High beams will be reflected by the eyes of deer on or near roads. If you see one deer, be on guard: others may be in the area. Deer typically move in family groups at this time of year and cross roads single-file.
• Don’t tailgate. Remember: the driver in front of you might have to stop suddenly to avoid hitting a deer.
• Always wear a seatbelt, as required by law. Drive at a safe and sensible speed, considering weather, available lighting, traffic, curves and other road conditions.
• If a collision appears inevitable, do not swerve to avoid impact. The deer may counter-maneuver suddenly. Brake appropriately, but stay in your lane. Collisions are more likely to become fatal when a driver swerves to avoid a deer and instead collides with oncoming traffic or a fixed structure along the road.
• Report any deer-vehicle collision to a local law enforcement agency immediately.
• Obey the state’s hands-free device law or, better yet, avoid any distractions by refraining from using cellular devices while driving.

As a result of New Jersey’s deer management policies, the estimated population of deer in New Jersey, derived from a formula based on deer harvested in hunting seasons, is about 101,000, down from 204,000 in 1995.

This does not factor in deer inhabiting areas where hunting is not permitted. The DEP’s Community-Based Deer Management Program is available to help municipalities control deer in areas where sport hunting is not a viable management tool.

If you should encounter an injured deer in your travels, call (973) 263-4300.