Catching a bee swarm is surprisingly straightforward: most swarms are docile, temporarily clustered in one spot, and waiting for you to give them a new home. The basic method involves shaking or brushing the clustered bees into a container, then transferring them into a hive. With the right timing and a few pieces of equipment, even a first-year beekeeper can do it successfully.
Why Bees Swarm and How Long You Have
Swarming is how honey bee colonies reproduce. When a colony outgrows its hive, becomes too congested, or the queen’s chemical signals can no longer reach the entire workforce, the workers trigger a split. Roughly half the colony leaves with the old queen and clusters on a nearby surface, usually a tree branch, fence post, or building overhang, while scout bees fan out searching for a permanent cavity to move into.
That clustered ball of bees is your window of opportunity. Swarms typically stay put for a few hours to a full day, though some linger for several days. Once the scouts agree on a new home, the entire cluster lifts off and flies to it. So when you spot a swarm or get a call about one, move quickly but not frantically. You have time to gather your gear.
Equipment You Need
You don’t need much. The essentials are:
- A container for the bees. A five-frame wooden nuc box is ideal because bees can start building comb on the frames immediately. A five-gallon bucket with a screened lid or even a sturdy cardboard box will work in a pinch.
- A bee suit and gloves. Swarms are generally gentle since they have no brood or honey stores to defend. But some are unexpectedly defensive, and you won’t know until you’re standing next to thousands of bees. Wear protection.
- A frame of empty comb. If you have drawn comb from another hive, place it inside your nuc box. Offering bees a “furnished apartment” makes them far more likely to accept and stay in the box.
- A spray bottle of sugar syrup. A 1:1 mix of sugar and water, sprayed onto the cluster, weighs the bees down so fewer take flight when you shake them loose.
- Lemongrass oil (optional). A few drops on a paper towel placed inside your box mimics the scent of a natural bee attractant pheromone. It helps foragers find the box entrance after the catch. Refresh it every two weeks if you’re using it in a passive swarm trap.
- Pruning shears or loppers. If the swarm is on a small branch, cutting the branch is often easier than shaking it.
When to Make Your Move
Let a freshly arrived swarm settle for at least 15 to 20 minutes before you approach. Bees on the outer shell of the cluster deliberately lower their body temperature to conserve energy, and until they cool down, they’re still flight-ready. Try to capture the swarm too early and they’ll simply lift off and regroup somewhere else, or return to their original hive.
Late afternoon or early evening is often the best time. Cooler air temperatures mean the bees are calmer and less mobile. Foraging scouts that have already left the cluster will return to it by dusk, so you capture more of the colony. That said, if you find a swarm mid-morning and it’s well clustered, don’t wait. A swarm that departs at 2 p.m. is one you’ll never catch.
The Shaking Method, Step by Step
This is the most common technique and works whenever the swarm is clustered on something you can reach and shake.
Position your nuc box or bucket directly below the cluster. If the swarm is on a tree branch, give the branch one sharp, decisive shake to dislodge the bees into the container. A tentative shake just scatters them. You want one firm jolt that drops the bulk of the cluster, ideally including the queen, straight into the box. If the branch is small enough, cut it and carry the whole thing to your container.
Spray the cluster with sugar syrup before shaking. Wet bees are heavy bees, and heavy bees fall into your box instead of flying around your head.
Once the main mass is in the box, set the lid on loosely or prop it slightly open. Watch the entrance. If you got the queen, you’ll see the remaining bees start fanning their wings at the box opening, releasing scent to guide stragglers inside. Within 15 to 30 minutes, a steady stream of bees should be marching in. If instead they’re pouring back out and reforming a cluster somewhere else, the queen isn’t in the box. You’ll need to try again.
Swarms on Flat Surfaces or Walls
Not every swarm hangs conveniently from a branch. When bees cluster against a wall, fence, or broad tree trunk, you can’t shake them loose. Use a soft bee brush or a large feather to gently scoop bees into your container. Work from the top of the cluster down, sweeping bees into the box in handfuls. This takes longer and the bees may be slightly more agitated, so go slowly and steadily.
Another approach is to place your open nuc box as close to the cluster as possible, with the entrance touching the surface the bees are on, then let them walk in on their own. Bees naturally seek out enclosed cavities. Adding a frame of old comb and a few drops of lemongrass oil inside the box makes this passive approach more reliable.
Getting the Swarm Into a Permanent Hive
If you caught the swarm in a nuc box with frames, you can leave them in it for up to a week before transferring to a full-size hive. If you used a bucket or cardboard box, transfer them the same day. Shake or pour the bees in front of the hive entrance rather than dumping them inside from above. Bees seem drawn to march into an enclosed space on their own, and walking in appears to help them orient to the new location.
A few things dramatically improve your odds of keeping the swarm from absconding:
- Use equipment that smells like bees. A hive body that previously held a colony, with residual beeswax and propolis scent, is far more attractive than brand-new woodenware.
- Add a frame of open brood. If you have another colony, borrowing a single frame containing eggs or young larvae is the single most effective anchor. Bees are deeply reluctant to abandon brood.
- Give them drawn comb. Empty frames with foundation work, but frames already drawn into comb are better. The more “move-in ready” the hive feels, the more likely they are to stay.
- Size the space appropriately. A small swarm in a cavernous two-box hive may feel the cavity is wrong and leave. Start most swarms in a five-frame nuc or a single hive body. For unusually large swarms, two full-size boxes right away can prevent them from feeling cramped.
After installation, leave the colony completely alone for one week. Don’t open the hive to peek. The one exception is adding that frame of brood from another colony, which you can do right away. After seven days, the swarm should have built comb and the queen should be laying. At that point they’ve invested in their new home and are very unlikely to leave.
Feeding After the Catch
A swarm left its old hive with nothing but the honey in its bees’ stomachs. If nectar is flowing heavily in your area, a strong swarm may not need supplemental feeding at all. But smaller swarms, or swarms caught during a gap between bloom periods, benefit from sugar syrup (1:1 sugar to water by weight) offered in an entrance or in-hive feeder. Watch for comb building. If the bees aren’t drawing comb after a few days, they likely need the extra calories.
Using Swarm Traps to Catch Bees Passively
You don’t have to wait for a phone call. Swarm traps, sometimes called bait hives, let you attract swarms before they land somewhere inconvenient. A trap is simply a box roughly 40 liters in volume (about the size of a deep ten-frame hive body) placed 8 to 15 feet off the ground in a location with afternoon shade and a clear flight path to the entrance.
Bait the trap with a frame or two of old dark comb and a lemongrass oil lure. Scout bees evaluate dozens of potential cavities, and a trap that smells like a previously successful hive scores highest. Check traps every week or two during swarm season (typically spring through early summer). If you see heavy bee traffic at the entrance, you’ve caught one. Wait until evening when all foragers are inside, seal the entrance with screen, and move the trap to your apiary.
Safety and Local Resources
In the southern United States, particularly Florida, Texas, and the Southwest, a significant percentage of feral colonies carry Africanized genetics. These bees look identical to European honey bees but defend their nest much more aggressively, responding to disturbance in larger numbers and pursuing perceived threats over greater distances. If you’re in these regions, treat every feral swarm with extra caution. Full protective gear is not optional.
If catching a swarm yourself isn’t realistic, most state agriculture departments and local beekeeping associations maintain swarm removal lists: registries of beekeepers willing to come collect swarms at no charge. A quick search for your county’s beekeeping club or your state’s department of agriculture will usually turn up a phone number or online form. Beekeepers on these lists are typically happy to get the call, since a free swarm is a free colony.