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What Do Black Bears Eat?

Black bears have a varied diet that includes many types of food. In this article, we look at what makes up the diet of a black bear.

Black bears eat a variety of foods to supplement their dietary requirements. These include other mammals, plants, fruits, nuts, berries, fish, insects, birds, eggs, reptiles, and amphibians.

There are three bear species in North America, the American black bear, the brown ‘grizzly’ bear, and the polar bear. All three species of bear eat a varied diet from the other two. Here we discuss the diet of the American black bear.

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What Do Black Bears Eat?

American black bears can spend up to seven months hibernating every year. To survive during the winter, they must make sure that they build their fat reserves for the rest of the year. Without these fat reserves, it would be impossible to make it through the winter.

Black bears have a huge appetite when they are not hibernating in the warmer months. They spend almost all of their time eating, traveling, and sleeping in these months.

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Due to the long hibernation period, American black bears prefer foods high in fat, sugar, and protein. Black bears are classified as carnivores.

However, the American black bear does have a varied diet. Although this includes large ungulates such as caribou, deer, elk, moose, and wapiti, it also comprises plant matter and fruits.

Black bears will also eat many different fish species, along with birds and eggs. They will also eat various types of insects, including bees and wasps.

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Black bears are carnivores and will eat young caribou, deer, elk, and moose.

Black bears will remember where ungulates such as deer and elk have given birth, deliberately hunting in those areas yearly. In other locations, the bears will come across the young while traveling.

The number of young eaten by black bears can be significant in some country areas.

Black bears can also take down large hoofed mammals such as caribou, moose, or elk but will generally only do so if they have been weakened or injured. A black bear does not want to risk injury to itself before the long hibernation.

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The geographic location and the habitat play a big part in other animals black bears will eat.

Black bears feed primarily on larger animals for increased protein in some polar areas. In these colder areas, such as Northern Labrador, the black bears will take down fully grown caribou, deer, and moose.

Black bears eat other animals, including beavers, bobcats, coyotes, ground squirrels, mice, red foxes, voles, and wolves.

American black bears will also feed on carrion left behind by other species, chasing the other animals away from a kill.

Black bears may dig small mammals such as gophers from their burrows in spring. However, there are usually much larger animals that are easier to find.

Black bears may also find an abundance of animals that have not survived the long, cold winter. Old or weakened animals such as caribou, deer, elk, and moose that have died during the freezing season are left for the bears to feed on in spring.

The protein-rich carcasses can significantly help a bear that has been in hibernation throughout the winter.

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Although black bears supplement their diet with meat, up to 90% of their diet is vegetarian. Whereas ungulates such as cows, elk, and whitetail deer have a specialized stomach that can efficiently break down the plant matter, the black bear does not.

Ungulates have a long digestive tract consisting of four sections in the stomach. Each section has its function with specialized bacteria that help break the material down.

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Black bears only have a one-chambered stomach, unlike the four-chambered ungulates. However, although it is not as functional when breaking down the plant material, their digestive tract is very long.

This lengthened digestive tract allows the black bears to pull extra nutrition from plants. Black bears will eat plants when they are the most nutritious and tender.

Plants such as alfalfa, clover, and dandelions are broad-leafed and soft for the bears to digest. Flowers and roots are also eaten in large quantities, although they do not like to expend energy digging for the roots.

Plants are an essential part of the nutritional diet when the black bear wakes up from hibernation. Coinciding with the end of hibernation, new shoots and plants begin to grow in the spring after the long winter.

These new plants are soft and easy to digest for the re-emerging bear. After hibernation, a black bear’s stomach takes a few weeks to start working correctly again.

During the summer, bears will eat flowering plants such as Lillies and fireweed to supplement their nutrition.

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Berries and Fruit

Black bears also eat berries and fruits, which are essential to vary the bear’s diet. Fruit eaten by bears includes apples, blackberries, cherries, elderberries, huckleberries, plums, raspberries, and rose hips.

Raspberries and other blackberries become ripe early in the year, allowing the bear to eat them before moving to other fruit that ripens later. Black bears can decimate a farmer’s crop of berries, with some eating more than 30,000 a year.

Black bears also eat various nuts, and they will peel these from the cones of deciduous and evergreen trees. Hazelnuts are one of the favorite nuts for a bear, with some bears traveling considerable distances to reach a harvest of nuts.

The black bear can climb; this gives them an advantage over creatures that can not.

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As well as feeding on animals, American black bears also eat other foods to supplement their diet. Black bears eat an extensive range of insects and worms. These include ants, grubs, grasshoppers, beetle larvae, moths, caterpillars, and earthworms. Black bears have a sticky tongue that is used to watch insects.

Ants are an essential food source for bears, as they are high in protein. When fruit and berries are low, ants are eaten in significant quantities. Black bears will eat ants and their young in the pupal and larval stages.

They will also feed on bees and wasps. Many people believe that bears feed on honey, and this is correct. However, they mainly raid the beehives for the bees and the larvae.

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Birds and Eggs

Black bears will eat various bird species, including ducks, geese, and grouse. American black bears will also feed on the eggs of birds. Being adept at climbing trees, the black bears can find the eggs in the nests and the newly hatched birds too young to escape. However, they generally take most of the eggs and young chicks from the nest of ground-nesting birds.


They may also indulge in cannibalism, eating young black bears and adult female bears in some areas. Large adult males mainly carry out cannibalism.

Although classified as carnivores, plants and fruit make up most of its diet. Whereas other predators such as foxes, mountain lions, and wolves feed many on meat, black bears get up to 90% of their nutrition from plant material.

Reptiles and Amphibians

In the south of the country, such as Louisiana and Florida, bears may also feed on alligators. Although they do not want to risk injury from a full-grown alligator, they will raid the nests for the young and the unhatched eggs.

Black bears also eat some reptiles and amphibians, such as frogs, although this makes up a small portion of their diet.


American black bears will also feed on various types of fish, depending on the geographical location. Black bears along the Western Pacific Coast need the supply of salmon spawning in the area to make up their diet.

Other types of fish include trout, which swim further inland in streams. Hungry black bears can easily catch Shallow-water species of fish such as carp and catfish.

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