Black Bears

 

Black Bear Tracks

 

Front track on the left. Hind track on the right. Claw marks do not always show.

 

 

Natural History of Black Bears

 

bears

Black bears are the smallest American bears, and the most common. They are the only bears found in the wild in California. Although the grizzly bear is the state mammal, it has been extinct in California since 1922.

Black bears are usually nocturnal, but can be active during the day. Bears are strong, agile, and quick. They swim and climb trees well. A bear can run 30 miles per hour in short bursts.

Bears eat a wide variety of foods. A partial list includes: grass, leaves, nuts, berries, buds, twigs, roots, corn, fruits, insects, plant sprouts, invertebrates, fish, carrion, fruit, succulent plants, eggs, birds, small mammals, and human garbage. Bears will dig up underground wasp nests to eat the insects, nest and all. They are extremely hungry when they emerge from their winter dormancy period in the spring and will often strip the bark off trees to eat the sugary cambium layer. The bears in the region do not hibernate all winter, but they do sleep away the harshest part of winter. Bears den in logs, beneath fallen trees, and in caves. Several days before entering the den, a bear consumes roughage, including leaves and bits of its own hair. These form a plug up to a foot long in the digestive system that is voided after the bear emerges from the den.

One or two young are born during the winter, usually in January or February. They weigh Ĺ pound at birth and grow quickly by nursing on the mother's milk, which can contain as much as 20% fat.

Bear droppings are over an inch thick, and tubular. The scat varies with diet, which can be 90% vegetable matter.

Bears are shy animals and will usually run from humans. They sometimes raid human garbage, compost piles, or pet food dishes that are left outside.

The inner toe in the track is the smallest toe. Bears walk plantigrade or flat-footed. Bears use the same trails over and over for generations. They tend to place their feet in exactly the same place every time they use the trail. You can find these trails where each footfall is in a depression worn into the ground by the passage of so many bears over the years.

 

Personal Notes on Black Bears

 

I never lived in bear country until I moved to northern California. Black bears are abundant here. No grizzlies live in California (except in zoos). The last California grizzly was shot in 1922 in Tulare County. In Humboldt County, where I live, the first explorers through the area encountered numerous grizzlies as they made their way south. This was in late 1849 and early 1850. In fact, one of the explorers was attacked by a grizzly near the present-day town of Miranda.

I have seen several black bears close up. One was raiding my garbage cans one night. I heard noise outside and opened the door to see what it was. I startled the bear, who ran about 50 feet, then climbed up a tree and clung there, looking at me and grunting. I went back inside to watch what it would do. It climbed down from the tree and cautiously approached the garbage again. I flung open the door and the bear took off running. (Donít try this at home.)

smbear

The next bear I saw was a young one that had developed a taste for food from campsites that were unoccupied. (This happened in the park where I work summers.) I was working in the campground entrance one day when two guys came up and told me theyíd seen a bear about 50 feet down the road. I went to look and, sure enough, there was the little bear. He stood still, thinking I hadnít seen him. When I began to move down the road, he took off running for the brush. He stopped after a short distance and put his paws up on a tree as if to climb. When he realized I wasnít following him, he sauntered off into the brush.

This same bear gave me an entertaining summer following his trails around the campground. Bears are fairly habitual and will stick around an area where there is easy food. This one decided that he liked the sort of foods people bring camping. He established a network of trails all the way around the campground perimeter, just out of sight. Heíd keep himself hidden in the thick brush or up on an abandoned road that ran up a hill behind the camp. When someone left food out in a campsite, he would scurry down and grab it and cart it back up the hill, where he ate the prize.babybear

His trail system provided him a highway between two campgrounds and some of his favorite resting areas. The best bear day bed that Iíve ever found was one this bear used. It was an old apple tree, overgrown with blackberry vines, and surrounded by brush and grass. The tree had a large, horizontal limb that provided the bear with a hammock in which to lounge away the warm summer days while he nibbled apples from the tree, or berries from the vines. The creek ran not 20 yards from the bearís hangout, providing fresh water anytime. It was the perfect bear hangout. It has been used several years in a row now.

I find bears challenging to track because their feet are relatively flat. They walk plantigrade, or flat-footed. You would think that such a large animal would leave huge imprints. Actually, they donít. Most of the time, the tracks I find are indistinct flattenings of the soil. Every once in a while, I find a nice clear print showing all five toes and maybe the claws. Usually the claw marks are not visible. And, sometimes, the fifth toe doesnít make an imprint. Tracking bears is like tracking barefoot humans. There are no sharp edges on the feet to leave distinct impressions on the ground.

Iíve made plaster casts from numerous bear tracks. Recently, I made a cast of a print in fine river silt. The cast shows the hair on the foot!

Bears are intelligent animals and their trails will yield endless hours of entertainment, if you are willing to spend the time. Youíll learn a lot about bears just by following their tracks. Itís time well spent.

 

 

I highly recommend the North American Bear Center's pages:

Not hosted on this site, but great black bear page
from the North American Bear Center:
Lily the Black Bear
Jewel the Black Bear
Opens in a new window. Follow along as Lily and Jewel raise cubs!
These web cams provide a look inside a wild bear's den, LIVE!
Watch cubs being raised and cared for in real time and learn more
about bears than ever possible before.
Rare glimpses into the lives of wild black bears.

 

 
 

Got a bear story? E-mail me and tell me about it.

 

tracker@humboldt.net prints

Back to Animal Tracks of Humboldt County

Copyright © 1998. Text and drawings by Kim A. Cabrera

Bear pictures from The Bear Den