Black bears

Wapusk National Park

Black bears (Ursus americanus) are the smallest of the three bear species found in Wapusk. They often stay in the boreal forest regions of the park, but some have been spotted by trail cameras venturing out on the park’s tundra and near the coast.

Black bears are omnivores – they eat everything! While their diet varies, up to 85% of it is vegetation. They are known to feed on insects (such as bees, yellow jackets, ants, and larvae), carrion, newborn animals, honey, the shoots of many plant species and fruits (such as blueberries and cranberries).

Black bears have a broad head with a narrow muzzle and small, rounded ears set back on their head. Their claws are short and rounded, located on both their front and hind paws. Thick at the base and narrowing to a point, their front claws are more sharply curved. Despite their name, black bears have up to six different colour phases! They can be black, brown, blond, cinnamon, blue-grey and white!

In October and November, black bears hollow out dens to prepare for hibernation. They use tree cavities, logs, rocks, banks, caves, culverts and shallow depressions. Hibernation usually lasts three to eight months, but can be longer. Geographic location, temperature, flooding and hunger may impact this duration.

Black bears breed from June to July, but this period may go until August in their northern range. Female black bears can have one to six cubs, though two or three is average. Black bears have a large population estimate and are widely distributed. They are considered Not at Risk by federal and provincial conservation standards.     

Black bear facts
 
  • Adult males average 57 to 250 kilograms (126 to 551 lbs) and adult females average 41 to 170 kg (90 to 375 lbs).
  • At birth, cubs weigh on average 280 to 450 g (0.6 to one lb).
  • Females typically have cubs once every two years, after they reach maturity.
  • While hibernating, black bears lose up to 50% of body fat.
  • The fastest human sprinters can run at just over 35 km/h. A black bear runs at speeds of 45 km/h to 50 km/h.

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