Introduction
Between May and June, you’re more likely to see one of nature’s most dramatic sights: a
honeybee swarm. It looks alarming — thousands of bees in the air, then a football‑sized cluster
hanging from a branch, fence post, or even a lamp post. The good news? Swarms are usually
gentle when clustered. This guide explains what’s happening, how to tell it’s a swarm, what not
to do, and how to get help in the North East.

What Is a Swarm?
Swarming is how a honeybee colony reproduces. When a strong spring colony runs out of space
or the instinct kicks in, the old queen leaves the hive with thousands of worker bees to find a
new home. They settle temporarily in a cluster while scout bees fly off to evaluate nest sites.
Once they agree on the best site, the entire cluster lifts off and relocates.

Are Swarms Dangerous?
A clustered swarm is generally non‑aggressive because the bees are focused on protecting the
queen and moving house, not defending a home. Many have full stomachs of honey, which
makes them calmer. Still, treat them with respect: keep children and pets at a distance, and
don’t throw water or objects at them.

How to Recognise a Honeybee Swarm

Appearance: a dense cluster like a rugby ball or larger, hanging from a branch, fence, wall, or
even a car. Bee type: Honeybees are smaller and slimmer than bumblebees. Behaviour: A
whirling cloud for 10–20 minutes, then a still cluster for a few hours up to a day or two.

What To Do If You See a Swarm
1) Keep Calm and Step Back. 2) Observe From Afar and note location, height, size, access, and
time present. 3) Contact a Swarm Collector. 4) If Indoors/Chimney: don’t block entrances; seek
specialist advice. 5) If It’s Bumblebees: consider leaving them — colonies are small and
temporary.

What Not To Do
Don’t spray water or insecticide. Don’t try to move them yourself. Don’t swat or wave arms —
slow, steady movement keeps everyone relaxed.

Why Do Bees Swarm in May?
By May, colonies are booming. With lengthening days and abundant nectar and pollen, the hive
population can outgrow its space. Swarming is a natural safety valve and a way to spread
genetics across the landscape.

After Collection — What Happens to the Bees?
A swarm collector places the cluster into a ventilated box or nucleus hive, ensuring the queen is
included. The bees then settle in a managed hive, are monitored for health, and become part of
a local apiary — a safe home for the bees and peace of mind for the community.

North East Notes
Swarm timing varies with weather: coastal areas may see earlier swarms than upland
Northumberland. Warm, still days after rain can trigger multiple swarm events.