Canada Lynx

About the Canada lynx

The Canada lynx is one of four living species in the genus Lynx, alongside the bobcat, the Eurasian lynx, and the Iberian lynx. It was first described by Robert Kerr in 1792, and while a few subspecies have been proposed over the years, most taxonomists now treat it as a single, monotypic species with little genetic or physical variation across its range — the main exception being a somewhat darker coat in the isolated Newfoundland population, which is thought to have diverged from mainland lynx sometime between 20,000 and 33,000 years ago.

Physically, the Canada lynx is a lean, medium-sized cat with long, dense fur, triangular ears tipped with black tufts about 1.6 inches long, and broad, snowshoe-like paws that can spread nearly 4 inches wide to support the animal on soft snow — nearly twice the load-bearing surface of a bobcat's paw. Its hind limbs are longer than its forelimbs, giving its back a downward slope toward the front, and its stubby, fully black-tipped tail runs 2–5 inches long. The coat is typically yellowish brown with little patterning, white underparts, and a silvery-grey spot on the back of each ear; in winter, longer hair on the cheeks gives the impression of a ruff around the throat. Males are larger than females: adult length runs 29–42 inches (73–107 cm), shoulder height is 19–22 inches (48–56 cm), and weight ranges from 11–26 pounds (5–12 kg) in females to 13–37 pounds (6–17 kg) in males, with one exceptional Pennsylvania male reaching 44 pounds (20 kg).

In the wild, the Canada lynx occurs predominantly in the dense boreal forest of Canada, and its range closely tracks that of its primary prey, the snowshoe hare. In the United States it is found in the Blue Mountains and Cascade Range of the Pacific Northwest, the Rocky Mountains, the northern Great Lakes region of Minnesota and Michigan's Upper Peninsula, and northern New England. It was reintroduced to Colorado starting in 1999 after being wiped out there in the 1970s, and a 2022 sighting in Wyoming's Gros Ventre Range was the state's first confirmed record since 2012. The species is considered extirpated in New York, Pennsylvania, Massachusetts, Nevada, Indiana, and Ohio.

Behavior and diet

Like the snowshoe hare it depends on, the Canada lynx tends to be nocturnal, hunting mainly around twilight and at night, though it can be seen moving during the day as well. It is a specialist predator: snowshoe hares make up 35–97% of its diet depending on the season and how abundant the hares are locally. When hare numbers crash, lynx will take other prey, including ducks, grouse, moles, ptarmigan, red squirrels, voles, and young ungulates such as Dall's sheep, mule deer, and boreal woodland caribou — though hares remain the backbone of the diet even then. Hunting style is patient rather than pursuit-based: a lynx waits for a hare along a known trail or in an "ambush bed," then pounces and kills with a bite to the head, throat, or nape.

The species' population rises and falls in step with cyclical booms and busts in the snowshoe hare population across Alaska and central Canada — lynx numbers climb when hares are plentiful and decline, disperse to hare-rich areas, or produce fewer young when hares crash. Individual lynx cover 5–5.6 miles (8–9 km) a day at a walking pace in search of prey, and they are capable swimmers — one was recorded crossing 2 miles (3.2 km) of the Yukon River — and efficient climbers that will scale trees to escape predators, though they hunt strictly on the ground.

Canada lynx are largely solitary, with the main social bonds being between mothers and their female offspring and a brief pairing between males and females during the mating season, which runs roughly a month from March to early April. Individuals of the same sex tend to actively avoid one another, forming what researchers call "intrasexual" territories rather than defending overlapping ground — a pattern also seen in bears, bobcats, cougars, and some mustelids. After a gestation of two to three months, females give birth to a litter of one to eight kittens, which are weaned around 12 weeks of age. Home range size varies enormously with prey density and measurement method, from roughly 4 to 302 square miles depending on the study, and males typically hold larger ranges than females.

Range and habitat

The Canada lynx's range stretches across Alaska and Canada and dips into the northern contiguous United States, closely following the boreal forest and the snowshoe hare populations that live in it. Within the U.S., established populations persist in the Pacific Northwest's Blue Mountains and Cascades, the Rocky Mountains, the Great Lakes region of Minnesota and Michigan, and northern New England, with a reintroduced population in Colorado. Lynx have been recorded at elevations up to 14,140 feet (4,310 m).

The species generally avoids open country even where prey is available, and struggles in heavily logged or agricultural land, though it can do well in cleared forest that has been left to regenerate for at least 15 years. It is considered extirpated from several states at the southern edge of its historic range, including New York, Pennsylvania, Massachusetts, Indiana, Ohio, and Nevada, though occasional dispersers — such as the 2022 Wyoming sighting — turn up outside the core range from time to time.

Conservation status

The IUCN lists the Canada lynx as Least Concern, citing its abundance across most of its range and the absence of severe range-wide threats. It is regularly trapped for the international fur trade across most of Alaska and Canada, but is protected through the southern half of its range, where habitat loss is the primary concern. In the United States, that southern-range vulnerability is reflected in the string of states — including New York, Pennsylvania, Massachusetts, Ohio, Indiana, and Nevada — where the species has already been extirpated, and in active efforts such as Colorado's reintroduction program, which began in 1999 after the state's original population disappeared in the 1970s.