What Animal Digs Up Ground Bees and Why?

Skunks are the single most common animal that digs up ground-nesting bees in North American yards, though badgers, bears, raccoons, and even some surprising species like chimpanzees and elephants also raid underground bee nests around the world. The motivation is consistent across all of them: bee brood and stored honey are calorie-dense, protein-rich foods that reward any animal willing to tolerate a few stings. The identity of the digger depends largely on where you live and what kind of bees are nesting, and the signs each animal leaves behind are distinct enough to narrow down the culprit.

Skunks Are Usually the First Suspect

If you wake up to find shallow divots scratched into bare soil near small, pencil-sized holes in your lawn, a striped skunk is probably responsible. Skunks are opportunistic omnivores with strong front claws built for scratching and digging. They target ground-nesting bees for the same reason they dig up grubs: the larvae are packed with protein and fat, and they sit just a few inches below the surface. Skunks tend to dig at night, and the holes they leave are relatively small and messy, often with loose soil fanned out in one direction.

Skunks have an additional advantage. Their thick fur and loose skin provide meaningful protection against stings, and they seem largely unbothered by defensive bees. A skunk will sit at the entrance of a nest, scratch at the ground to provoke the bees into emerging, and then swat them out of the air. You can sometimes find chewed-up bee remains near the excavation site, which is a reliable sign that a skunk rather than another animal did the work.

Raccoons, Opossums, and Other Opportunists

Raccoons will dig up ground bee nests when they stumble on them, though they are less systematic about it than skunks. Raccoons are generalists that eat almost anything, and their dexterous front paws let them peel back soil and root around for larvae. The holes they leave tend to be larger and more chaotic than those made by skunks, partly because raccoons use their hands to pull and tear rather than scratch in one direction.

Opossums, armadillos, and foxes round out the list of mammals that occasionally raid ground bee nests in North America, though none of them specialize in it the way skunks do. Armadillos in the southern United States are particularly effective diggers. Their powerful forelimbs and armored bodies make them well-suited to excavating insect nests, and they leave cone-shaped holes that are deeper and narrower than those made by raccoons. If you live in the southeastern U.S. and find deeper, more deliberate-looking excavations near bee nest entrances, armadillos are a reasonable guess.

Badgers on Both Sides of the Atlantic

European badgers are among the most significant predators of ground-nesting bumblebees across the U.K. and continental Europe. Researchers have quantified this by burying artificial nests containing bumblebee nest material alongside control pots without it. The pots with bumblebee material were dug up at significantly higher rates, confirming that badgers are actively seeking out the nests rather than stumbling into them by accident. In areas with high badger density, the predation pressure was greater in woodland than in grassland, though nest depth alone did not seem to deter the badgers from digging.

The honey badger takes nest raiding to another level. In a long-term camera-trap study spanning five years at 100 underground stingless bee nests in Gabon, honey badgers were the most efficient diggers of the three species observed exploiting those nests. Chimpanzees visited the nests more frequently, but honey badgers matched their rate of successfully extracting resources when they did show up. Honey badgers are built for this work: compact, muscular, loose-skinned, and equipped with claws that can tear through compacted soil with remarkable speed.

Bears and Bee Nests

Black bears and grizzly bears are famous for raiding beehives, but they also dig up ground-nesting bees and bumblebees when the opportunity arises. A bear’s motivation is primarily the brood and the honey rather than the adult bees themselves, though bears will eat everything in and around a nest. Their size and strength make short work of any underground nest, and their thick fur and fat layer provide substantial protection from stings.

Bear-raided nests look dramatically different from skunk or raccoon damage. A bear will tear out a large section of ground, sometimes leaving a hole a foot or more across with deep claw marks in the surrounding soil. If you live in bear country and find a ground bee nest that looks like it was hit by a small backhoe, the answer is straightforward. Bears tend to return to productive food sources, so a nest raided by a bear is likely to be visited again if there is anything left.

Chimpanzees and Elephants as Unlikely Bee Nest Raiders

The Gabon camera-trap study mentioned earlier documented something that might surprise anyone who associates nest raiding exclusively with small-to-medium mammals. Chimpanzees were the most frequent visitors to underground stingless bee nests in Loango National Park, using tools like sticks to probe the nest entrances and extract honey and brood. Forest elephants also participated, using their tusks and feet to break open nests. All three species, chimpanzees, elephants, and honey badgers, were filmed at the same nest sites over the study period, effectively competing for the same resource.

Chimpanzees represent a particularly interesting case because their nest exploitation involves deliberate tool use. They do not simply dig with their hands; they select and modify sticks to extract honey from deep within a nest without fully destroying it. This means a single nest can be visited repeatedly over weeks or months by multiple species, each taking a different approach to getting at the food inside. The elephant’s method is far less subtle: they crush the nest entrance and scoop out what they can, which tends to cause more permanent damage.

How Predators Find Nests They Cannot See

A ground bee nest is not exactly advertising its location. The entrance is often a single small hole in bare or sandy soil, and the nest itself can sit anywhere from a few centimeters to half a meter below the surface. So how do skunks, badgers, and other predators find something invisible?

Smell is the primary answer. Research on how olfactory predators locate hidden prey has shown that success depends on how concentrated and localized the scent cues are. When odor signals are patchy, clustered around the actual prey location rather than spread uniformly across an area, predators find their targets much more reliably.

Ground bee nests produce exactly this kind of patchy signal. The nest entrance funnels wax, pollen, and brood odors upward through a narrow channel, creating a concentrated scent plume right at the surface. Away from the entrance, there is little or no odor. This makes the nest relatively easy for a keen-nosed mammal to pinpoint once it gets within range. European badgers in the artificial-nest experiment dug up pots containing bumblebee nest material but left empty control pots alone, which is strong evidence that scent, not visual cues or random digging, is what guides them to the right spot.

Visual cues play a supporting role. Many solitary ground bees create small mounds of excavated soil around their nest entrances, and in aggregations of dozens or hundreds of nests, the pockmarked ground is conspicuous. A predator that learns to associate those soil mounds with food can return to the same patch of ground repeatedly. Skunks and raccoons are both creatures of habit, and once they find a productive nesting aggregation, they tend to revisit it nightly until the bees have emerged or the brood is gone.

Why the Food Is Worth the Stings

Digging up a bee nest means getting stung, at least for most predators. So the reward has to be substantial, and it is. Bee brood, meaning the larvae and pupae developing inside the nest cells, is remarkably nutrient-dense. An integrative review of the nutritional composition of bee brood found that it is rich in protein and fat, with energy values ranging from roughly 1,900 to 2,000 kilojoules per 100 grams of dry mass. Protein and fat content increase as the brood develops from larvae to pupae, making older brood even more calorie-packed.

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For a skunk or a badger, a single ground bee nest is the equivalent of a concentrated protein bar buried a few inches underground. Honey, when present, adds simple sugars to the mix. Pollen stores provide additional fats and micronutrients. The combination of protein, fat, and sugar in one location is unusual in the wild, which explains why so many unrelated species have independently evolved or learned to exploit bee nests. From a caloric standpoint, the math works out: the energy gained from raiding the nest substantially exceeds what the animal expends in digging and tolerating stings.

This nutritional payoff also explains why predators target nests at certain times more than others. Bee brood is most abundant during the active nesting season, typically late spring through midsummer for many ground-nesting species in temperate regions. Predators that rely heavily on insect prey, like skunks in late summer when they are building fat reserves, concentrate their nest raiding during the peak brood period.

How to Tell Which Animal Dug Up Your Ground Bees

The damage left behind varies enough between species that you can usually narrow down the culprit without setting up a camera, though a trail camera is the gold standard if you want to be certain.

Shallow scratches with scattered soil: Skunks. The holes are typically two to four inches deep, with soil pushed to one side. You may find chewed bee parts nearby.
Wider, torn-up patches: Raccoons. The damage covers a broader area and looks less directional, as if something was rooting around with its hands.
Deep, cone-shaped holes: Armadillos. These are neat and surprisingly deep for their diameter, usually three to five inches across.
Large, destroyed areas with claw marks: Bears. The scale of destruction is unmistakable, with deep gouges and displaced soil measured in shovelfuls rather than handfuls.
Neat, excavated tunnels: Badgers. In Europe and parts of western North America, badgers dig efficiently and leave clean-edged excavations.

Timing helps too. Skunk and raccoon damage almost always appears overnight. Bear damage can happen at any time but is more common in early morning or evening. Armadillos are nocturnal or crepuscular. If the digging happened during broad daylight and you live somewhere with American badgers, that points in their direction.

What This Means for Ground-Nesting Bees

Ground-nesting bees, which include most solitary bee species and some bumblebees, already face habitat pressure from development, pesticides, and soil compaction. Predation by mammals is a natural part of their ecology and has been occurring for millions of years, but the interaction between predator pressure and habitat loss is worth understanding. When nesting habitat shrinks, bee aggregations get concentrated into smaller patches, which can make them more conspicuous and easier for predators to find and return to.

If you are a gardener or landowner who values ground-nesting bees as pollinators and you are watching skunks or raccoons systematically destroy nests, there are a few practical options. Laying a loose piece of chicken wire flat on the ground over the nesting area can deter casual diggers without blocking the bees, which are small enough to pass through the mesh. Motion-activated sprinklers or lights discourage nocturnal visitors. Avoiding the use of insecticides near nesting areas is important because weakened colonies produce less brood and fewer defensive bees, which lowers the cost of raiding for predators and can accelerate nest loss.

When Ground Bees Sting the Predator Back

Not all ground-nesting bees are equally vulnerable. Social species like bumblebees mount a collective defense, with multiple workers stinging the intruder simultaneously. This can deter smaller or less committed predators. Solitary ground bees, by contrast, have almost no defensive capability against a digging mammal. A single female mining bee guarding her nest simply cannot produce enough venom or mount enough of a physical deterrent to stop a skunk.

Some tropical stingless bees take a different approach. Rather than stinging, certain species of Meliponini have evolved to bite, coat intruders in sticky resin, or swarm en masse to clog an attacker’s nostrils and ears. These defenses are more effective against smaller predators and arthropods than against a determined honey badger or chimpanzee, but they do raise the cost of predation for some attackers. The Gabon study’s finding that chimpanzees used stick tools rather than their bare hands to extract honey suggests that even for a large, intelligent primate, going in directly is not the preferred strategy when alternatives exist.

Nest depth is another line of defense, at least in theory. Deeper nests require more energy to excavate and more time exposed to stinging defenders. But the evidence from the European badger study suggests that depth alone is not a reliable deterrent: badgers dug up artificial nests at similar rates regardless of how deep they were buried. For ground bees, the more effective anti-predator strategy appears to be nesting in soil types that are harder to excavate, like clay or heavily root-bound ground, rather than simply going deeper in loose or sandy soil.

1
PubMed Central. Quantifying the relative predation pressure on bumblebee nests by the European badger (Meles meles) using artificial nests
2
Biotropica. Exploitation of underground bee nests by three sympatric consumers in Loango National Park, Gabon
3
Journal of Animal Ecology. Negotiating a noisy, information-rich environment in search of cryptic prey: olfactory predators need patchiness in prey cues
4
PubMed Central. Bee Brood as a Food for Human Consumption: An Integrative Review of Phytochemical and Nutritional Composition