What Eats Bees: Bears Make the Headlines, But the List Gets Much Stranger
The bee-eater bird catches a honey bee in flight, flies to a perch, and beats the bee against a branch 20 to 30 times. Not to kill it - the bee is already dead. The beating squeezes out the venom sac and rubs off the stinger before swallowing. This is a learned behavior. Young bee-eaters do it wrong for weeks, sometimes stinging themselves in the process, before they get the technique right.
That's the world a honey bee operates in. A world where at least one species has evolved a specific behavioral protocol just to eat them safely.
The bear gets all the cultural credit as the bee's great predator. It's not wrong exactly - bears do devastating damage to hives and have shaped beekeeping practices across centuries. But bears are probably not the most dangerous thing a honey bee colony faces. They're just the most photogenic.
Bears: The Most Iconic, Not the Most Dangerous
A black bear raiding a hive isn't primarily after honey. It's after brood - bee larvae - which are protein-rich and more nutritionally valuable than the carbohydrates in honey. A bear will tear apart a hive, eat the brood combs, consume whatever honey is accessible, and leave. The damage is structural: destroyed hive bodies, broken frames, scattered bees. The colony often survives in some form but gets set back weeks in its recovery.
Brown bears cause similar damage in regions where they overlap with beekeeping. In parts of Eastern Europe, bear predation on managed hives is a documented and ongoing economic problem, not a rare event.
The stings don't deter bears much. Their thick fur and tough skin make bee venom delivery difficult, and they tolerate stings to the face and around the eyes with what can only be described as grudging acceptance of the price of honey.
Skunks: The Patient Nightly Visitors
Striped skunks have developed a specific hunting strategy for honey bees that doesn't involve raiding the hive at all. A skunk approaches the hive entrance at night, scratches at the landing board, and waits. Guard bees emerge to investigate the disturbance. The skunk eats them, one by one.
The damage a skunk does isn't catastrophic - it doesn't destroy the colony. But regular nightly visits deplete the guard bee population, stress the colony, and chip away at productivity over time. It's a slow drain rather than a sudden shock.
Birds: More Species Than You'd Expect
The European bee-eater (Merops apiaster) is the most specialized avian bee predator - a brilliantly colored bird that, despite its name, has expanded its range northward through Europe and causes localized problems for beekeepers wherever it establishes. A single bee-eater can consume 250 bees per day. A nesting colony of bee-eaters - which nest communally in earthen banks - can remove tens of thousands of bees from the forager population during a single breeding season.
Beyond bee-eaters, several other bird species opportunistically take honey bees: European starlings, various swallows and swifts (aerial hunters that intercept foragers mid-flight), woodpeckers (which breach hive walls to access brood), and in North America, the eastern kingbird - a flycatcher that takes bees in flight with some regularity.
What makes bird predation ecologically interesting is that it targets the forager population almost exclusively. Foragers are outside the hive and accessible. The colony's interior is largely protected. The result is pressure specifically on the bees doing the resource gathering - the exact population a colony can least afford to lose in large numbers.
Spiders: The Ambush Specialists
Crab spiders (family Thomisidae) are arguably more damaging to bee populations than their size suggests. These are ambush predators that sit motionless on flowers - particularly white and yellow flowers where they can camouflage themselves - and wait for pollinators to land. A crab spider catches a honey bee by seizing it behind the head where the bee can't reach with its stinger, then injects venom that kills within seconds.
A single crab spider on a heavily-visited flower can take multiple bees per day over a foraging season. Orb weavers catch bees in webs and are less specialized, but the numbers add up. Spiders collectively remove enormous quantities of insects from the foraging environment, bees included, and the toll across a full season isn't trivial.
Robber Flies and Dragonflies: Aerial Interceptors
Robber flies (family Asilidae) are aerial ambush predators that target flying insects including honey bees. They're fast, armed with powerful legs for grabbing prey mid-flight, and their piercing mouthparts inject a paralytic saliva. One species, Mallophora bomboides, specifically targets bumble bees and honey bees - it has evolved to go after large, high-value prey rather than the smaller insects most robber flies pursue.
Dragonflies hunt on the wing and take whatever flying insects they can catch, which sometimes includes foraging bees. They're opportunistic rather than specialized, but in areas with large dragonfly populations near water, bees are a regular part of the catch.
Asian Giant Hornets: Organized Destruction
The Asian giant hornet (Vespa mandarinia) represents a different category of bee predation entirely: organized, coordinated slaughter. A scout hornet locates a honey bee colony and marks it with pheromones to recruit nestmates. The resulting assault - called the slaughter phase - involves a group of hornets decapitating guard bees and worker bees at the entrance, killing hundreds in under an hour, before occupying the hive and harvesting brood to feed to their own larvae.
European honey bee colonies have essentially no evolved defense against this. Japanese honey bees, which share an evolutionary history with the Asian giant hornet, have developed a counter-strategy: they mob the scout hornet before it can mark the hive, then vibrate their flight muscles to generate lethal heat inside the ball of bees. European honey bees don't do this and are defenseless against a coordinated assault.
The yellow-legged hornet represents a different but related threat - a smaller species that doesn't conduct slaughter-phase raids but does systematically pick off foragers at the hive entrance, creating a steady attrition that weakens colonies over weeks and months.
Varroa Mites: The Predator Inside the Colony
Varroa destructor isn't a traditional predator - it's an ectoparasite that feeds on developing bees inside capped brood cells. But the effect is predatory: mites feeding on bee larvae and pupae cause deformities, reduce immune function, and vector viral pathogens. A colony with a high varroa load is being eaten from the inside.
Varroa is unusual in this context because it's not an external predator the colony can defend against in conventional ways. Guards at the entrance don't stop it. The colony's chemical communication systems don't flag it. It reproduces inside capped cells that are beyond the workers' direct surveillance - which is exactly why it's been so destructive since its spread out of Asia in the latter half of the 20th century.
Humans
Traditional honey hunting cultures have harvested bee larvae as a food source for thousands of years. The Gurung people of Nepal's Annapurna region famously harvest massive wild cliff hives of Apis laboriosa - the Himalayan giant honey bee - including the brood. In parts of Southeast Asia and Africa, bee larvae are consumed as protein alongside the honey. The ecological relationship between humans and bee colonies as a food source predates managed beekeeping by an enormous margin.
The broader list - bears, skunks, birds, spiders, wasps, robber flies, dragonflies, mites, and humans - is a portrait of how many ecological niches have been carved out specifically around accessing the concentrated resources a honey bee colony holds. That much stored food, that much protein-rich brood, in one location, is too valuable a target to stay untouched for long.
The colony loss data tracked annually by USDA and the Bee Informed Partnership captures the statistical effects of some of these pressures - primarily varroa, but also the habitat loss that forces bees into more marginal foraging conditions that increase exposure to all of the above. Predation has always been part of the picture. The question is what it costs colonies at scale, and The Apiary Project tracks those patterns as part of monitoring the broader state of US colony health.