🦔 Hedgehogs in the UK

What is a hedgehog?

The hedgehog found in Britain is the European hedgehog (Erinaceus europaeus). It is one of the UK's most recognisable wild mammals, with a rounded body covered in thousands of stiff spines.

An adult hedgehog may have around 5,000–7,000 spines. These aren't poisonous and they cannot be fired at predators! Instead, when a hedgehog feels threatened, powerful muscles allow it to curl tightly into a ball, leaving its spines pointing outwards.

Underneath all those spines is surprisingly soft fur. Hedgehogs also have a pointed snout, small eyes and ears, and relatively long legs that are usually hidden beneath their body.

They are mammals, so they are warm-blooded, breathe air and females produce milk for their young.

Where do hedgehogs live?

European hedgehogs occur across much of Britain, although their populations are not evenly distributed and they are absent from some islands.

They can live in many different habitats, including:

gardens • hedgerows • farmland • woodland edges • grassland • parks • cemeteries • allotments

Hedgehogs particularly benefit from places containing a mixture of habitats. A hedge might provide shelter, for example, while nearby grassland provides somewhere to search for food.

Despite their association with woodland, hedgehogs generally prefer woodland edges and varied landscapes rather than living deep inside dense woodland.

Increasingly, our towns and villages can be important places for hedgehogs, particularly where gardens are connected and contain plenty of vegetation.

🌿 What makes a good hedgehog habitat?

A hedgehog needs more than somewhere to sleep.

A good habitat provides:

food + water + shelter + nesting material + safe places to travel

Long grass, shrubs, hedges, piles of leaves, logs and other natural features can provide feeding and hiding places.

One of the biggest problems occurs when otherwise suitable gardens are separated by solid fences and walls.

Hedgehogs can travel around one or two kilometres in a single night while searching for food and mates, so they need to move between different areas.

This has led to the idea of creating a Hedgehog Highway — a small hole of approximately 13 × 13 cm at the bottom of a garden fence, allowing hedgehogs to pass through.

One tiny hole can connect a garden to a much larger network of habitat.

🌙 Hedgehogs are nocturnal

Hedgehogs are primarily nocturnal, which means they are usually active during the night.

They spend much of this time searching for food.

Their eyesight isn't particularly strong, but hedgehogs have an excellent sense of smell and good hearing.

You may even hear one before seeing it. Hedgehogs can be surprisingly noisy animals, making:

snuffling • grunting • huffing • squeaking sounds.

Their noisy snuffling while searching through vegetation probably helped inspire the hog part of their English name.

🪱 What do hedgehogs eat?

Hedgehogs are omnivores, although much of their natural diet consists of invertebrates.

They may eat:

beetles • caterpillars • earthworms • earwigs • millipedes • other insects and larvae

They may also occasionally eat other available foods, including carrion, eggs or fallen fruit, but insects and other invertebrates form an important part of their diet.

This means a wildlife-friendly garden doesn't just need to provide food for a hedgehog directly.

It needs to support the creatures that hedgehogs eat.

A garden containing flowers, native plants, deadwood, leaf litter and areas of longer grass can support a much richer food web than an extremely tidy garden.

🥛 Should you give a hedgehog milk?

No.

The traditional image of leaving a saucer of bread and milk for a hedgehog is outdated advice.

Hedgehogs are lactose intolerant, so cow's milk can make them ill.

If supplementary feeding is appropriate, fresh water is much more useful. Suitable meaty cat or dog food or specialist hedgehog food may also be offered.

So:

❌ Bread and milk
✅ Fresh water

💤 Hedgehog hibernation

One of the most fascinating parts of the hedgehog's year is hibernation.

As temperatures fall and natural food becomes harder to find, hedgehogs usually begin hibernating during autumn or early winter.

They construct a nest called a hibernaculum, often using dry leaves and grasses.

Possible locations include:

under hedges • beneath logs • piles of leaves • compost heaps • underneath sheds • purpose-built hedgehog houses

During hibernation, the hedgehog's body changes dramatically.

Its:

heart rate slows • breathing slows • body temperature falls • metabolism decreases

This allows it to conserve energy when food is scarce.

Hibernation isn't necessarily one uninterrupted sleep. Hedgehogs can occasionally wake and

move nests during the winter.

They usually become regularly active again during spring.

🍂 Why are autumn leaves important?

People often see fallen leaves as something that needs to be immediately cleared away.

To wildlife, however, they can be both building material and habitat.

Hedgehogs collect leaves to make insulated nests. Leaf litter also supports many invertebrates, creating feeding opportunities.

So leaving a quiet pile of leaves in a safe corner can benefit far more wildlife than just the hedgehog.

🦔 Baby hedgehogs

Baby hedgehogs are called hoglets.

Females usually give birth during the warmer months, often to a litter of several hoglets.

Newborn hoglets are tiny and initially have soft, pale spines beneath their skin. Their spines begin emerging shortly after birth and become stronger as they grow.

Their mother feeds them with milk, because , despite their unusual appearance, hedgehogs are mammals.

Young hedgehogs eventually leave their mother and become independent.

Late-born hoglets can face additional challenges because they need to build enough fat reserves before winter.

🌀 What is self-anointing?

Hedgehogs sometimes perform one of their strangest behaviours when they encounter an unfamiliar smell or taste.

They may lick or chew the object, produce lots of frothy saliva, twist their body around and spread the foam across their spines.

This behaviour is called self-anointing.

Scientists still don't completely understand its purpose. There are several theories, including connections with scent or defence, but we don't yet have a definitive answer.

🦡 What eats a hedgehog?

Curling into a spiny ball is an excellent defence against many predators….. but not all of them.

In Britain, badgers are one of the few predators strong enough to overcome an adult hedgehog's defensive spines.

Foxes may sometimes prey upon hedgehogs too, particularly vulnerable individuals, although they aren't as well equipped as badgers to open a tightly curled adult.

Young or sick hedgehogs can be more vulnerable to predators.

However, today some of the greatest dangers hedgehogs face come not from natural predators but from human activity.

🚗 Hedgehogs and human dangers

Modern Britain can be difficult for an animal that travels considerable distances at night.

Hedgehogs can be injured or killed by:

roads and vehicles • garden machinery • pesticides • netting • uncovered drains • steep-sided ponds • bonfires • habitat loss and fragmentation

Robotic lawnmowers and strimmers can be particularly dangerous if used where a hidden hedgehog is resting.

Bonfires create another problem. A pile of logs and branches looks remarkably like a wonderful hedgehog shelter.

This is why bonfires should ideally be built on the day they are lit, or carefully dismantled and rebuilt before lighting rather than simply checking around the outside.

Ponds can actually be excellent wildlife habitats, but they need a shallow edge, ramp or other escape route so animals can climb out.

🏘️ Why are hedgehog numbers declining?

Britain's hedgehog population has experienced substantial long-term declines.

There isn't one single cause.

Instead, researchers believe several pressures interact, including:

habitat loss • fragmented habitats • changing farming practices • fewer hedgerows • roads • pesticides • intensive garden management

Rural and urban hedgehog populations can also behave differently, making their conservation more complicated than simply saying that hedgehogs are disappearing everywhere at exactly the same rate.

The hedgehog is consequently an important species for teaching children about habitat connectivity.

Saving one little patch of vegetation is useful.

Connecting many little patches can be even better.

🌼 How can we help hedgehogs?

Gardens can make a genuine difference.

Helpful actions include allowing hedgehogs to travel between gardens, providing fresh water and creating a range of natural habitats.

You can also:

leave some grass longer • grow flowers for insects • retain some fallen leaves • create log piles • avoid unnecessary pesticides • provide pond escape routes • check before mowing or strimming • make bonfires wildlife-safe

A purpose-built hedgehog house can provide additional shelter, but a garden doesn't need to be perfectly designed or expensive to help wildlife.

Sometimes being slightly less tidy is one of the best things we can do. 😂

📜 Hedgehogs in British history

Hedgehogs haven't always been viewed as the adorable garden visitors we tend to see today.

For centuries people believed some extraordinary things about them.

One particularly persistent belief was that hedgehogs would steal milk from cows, supposedly sucking milk directly from their udders.

They were also accused of damaging agriculture.

These beliefs became serious enough that during the Tudor period, legislation classified hedgehogs among animals considered harmful and rewards could be paid for killing them.

We now know that the idea of hedgehogs secretly milking cows is folklore rather than fact.

It provides a fantastic example of how people's understanding of animals changes as scientific knowledge improves.

🍎 The hedgehog carrying apples myth

One of the oldest and most recognisable images of a hedgehog shows it walking around with apples or other fruit stuck to its spines.

It is wonderfully cute.

It is also not normal hedgehog behaviour.

Stories about hedgehogs deliberately collecting fruit on their spines stretch back for centuries. Ancient writers even described hedgehogs rolling on fruit and carrying it away.

Real hedgehogs don't use their backs as little spiky shopping baskets.

✨ Hedgehogs, folklore, superstition and Traditional Beliefs

Hedgehogs have attracted conflicting beliefs.

Their ability to curl into a ball, emerge at night and disappear into hidden nests made them mysterious creatures to earlier communities.

Some traditions viewed them negatively as thieves or agricultural pests, while later folklore and modern symbolic interpretations have associated their spines and defensive behaviour with ideas such as:

protection • boundaries • self-defence • resilience • resourcefulness • connection with the earth

🧙 Hedgehogs and witchcraft accusations

There is also a darker historical connection.

During periods when belief in witchcraft was widespread, ordinary animals could sometimes become connected with ideas about familiars or supernatural activity.

Hedgehogs occasionally appeared within this broader world of superstition alongside animals such as cats, toads and other small creatures.

Combined with the false belief that hedgehogs stole milk from cows, this meant a completely harmless nocturnal mammal could acquire a surprisingly sinister reputation.

🌙 Hedgehogs in modern magical symbolism

In contemporary nature-based spirituality and magical practice, the hedgehog may be used symbolically rather than as part of one established historical tradition.

Its natural behaviour lends itself particularly well to themes of:

Protection — its spines protect its vulnerable body.

Boundaries — it curls up when threatened.

Rest — hibernation provides an obvious connection with slowing down during winter.

Preparation — autumn is a period of feeding and nest building before hibernation.

Resilience — a small animal survives by adapting its behaviour to its environment.

Home and safety — hedgehogs depend upon secure nests and connected habitats.