How to Identify Mountain Lion in Maryland

Mountain lions are large, muscular cats with a uniform tan or tawny coat, lighter on the belly and darker on the ears and tail tip. Adult males weigh 120 to 220 pounds and measure 6 to 8 feet long including a long, flexible tail that is typically dark at the tip. Females are smaller, around 80 to 130 pounds. They have small, rounded ears set on a broad head, and their body is sleek and built for ambush hunting. Compared to African lions, mountain lions have no mane and a longer tail. Their paws are large and leave prints about 3 to 4 inches across, round with no claw marks since their claws retract. The face is distinctive with a white muzzle, pale chin, and dark patches above the eyes that look like tear marks.

Mountain lions have not bred east of the Mississippi River for over 150 years. The only confirmed sightings in eastern states in recent decades are transient individuals, usually young males dispersing from the western population and passing through quickly. These extremely rare vagrants have occasionally been documented in the Great Plains and lower Midwest but do not establish populations or breed in eastern forests. Maryland has no breeding mountain lions and virtually no confirmed vagrant sightings. When mountain lions do occur far from their western range, they are individuals in transition, not indicators of a growing population.

Maryland's native large predator is the bobcat, which looks nothing like a mountain lion. Bobcats weigh 15 to 40 pounds, have a short fluffy tail with a black tip, and distinctive tufted ears. They are spotted or striped, not uniform in color, and are shy and rarely seen. Mountain lions are five to ten times larger than bobcats and lack ear tufts. Maryland also has coyotes, which are sometimes misidentified as mountain lions by people unfamiliar with wild predators, but coyotes weigh only 25 to 40 pounds and have pointed ears and bushy tails. Large dogs, especially tan or light-colored breeds like labradors or tan pit bulls in poor lighting conditions, account for many 'mountain lion' reports in suburban areas.

Mountain lions were eliminated from the eastern United States between 1750 and 1850 as European settlers expanded across the continent. Bounties were placed on mountain lions and other large predators because they occasionally killed livestock. Hunters killed them systematically for the rewards and to protect farms and sheep herds. At the same time, the large prey animals mountain lions depend on, such as elk, moose, and deer, were also overhunted. Without prey and facing intense persecution, the eastern mountain lion population collapsed. By 1900, mountain lions survived only in remote western mountains and southwestern deserts, far from human settlement. The eastern forests simply lost their large predator.

For mountain lions to recolonize Maryland naturally, two things would need to happen: the western population would need to expand eastward, and a growing population would need to successfully breed in the eastern forest. Neither is occurring. The current western population is stable but not expanding dramatically toward the East. Mountain lions face vast obstacles including highways, cities, and fragmented habitat when dispersing eastward. Even the rare individual mountain lions that reach the Great Plains rarely survive long before being hit by vehicles or killed. The climate, prey base, and human landscape have changed dramatically since the 1800s. A natural recolonization of Maryland is virtually impossible.

If you believe you have seen a mountain lion in Maryland, take a photo or video if safely possible, note the location and time, and report it to the Maryland Department of Natural Resources. Detailed reports help wildlife biologists track whether any vagrants are moving through the state. However, most 'mountain lion' reports turn out to be misidentified bobcats, coyotes, dogs, or animals seen at a distance or in poor lighting. If you feel threatened by an animal, back away slowly without running, go indoors, and call local animal control. Large predators rarely attack humans unprovoked. Maintaining distance and reporting sightings helps wildlife managers monitor the ecosystem.

The most common misidentifications are tan-colored large dogs, especially in suburban areas where outdoor dogs sometimes escape or roam at dusk. Coyotes are also frequently mistaken for mountain lions despite being much smaller. From a distance or in shadows, a large dog can look larger than it is, especially if the observer is nervous or surprised. Bobcats are rarely mistaken for mountain lions once seen clearly, but distant sightings or trail camera footage of a large bobcat in favorable lighting can create confusion. Bears can be mistaken for large predators by people unfamiliar with wildlife, though bears do not look like mountain lions. Most mountain lion reports in Maryland are explainable by one of these common animals.

Mountain lions and African lions are both wild cats but belong to different groups. Mountain lions are smaller, weighing up to 220 pounds compared to an African lion male's 400 to 570 pounds. Male African lions have a thick mane around their head and neck that mountain lions lack entirely. Mountain lions have a long slender tail used for balance and communication, while African lions have a shorter tail with a tuft at the end. Mountain lions are solitary hunters that stalk prey on their own, whereas African lions live in groups called prides and hunt cooperatively. Mountain lions inhabit forests, canyons, and desert ranges in the Americas, while African lions live in savannas and grasslands in Africa. Both are apex predators, but their biology, behavior, and habitats are distinctly different.

Mountain lions hunt large hoofed animals including elk, mule deer, white-tailed deer, and bighorn sheep, depending on what is available in their habitat. In the western mountains and deserts where they now live, deer and elk are their primary food. A single mountain lion kills about one large prey animal every 7 to 14 days and may travel several miles per day searching for food. They are ambush hunters that stalk close to prey before pouncing from behind. In some regions where wild prey is scarce, mountain lions enter conflict with ranchers by occasionally killing livestock like cattle or sheep. This predator-livestock conflict has decreased in many areas as ranchers use better fencing and protective measures. Mountain lions rarely eat smaller animals like rabbits or rodents, though they will if desperate.