🐿️ Squirrels in the UK

What is a squirrel?

Squirrels are mammals and belong to the rodent family Sciuridae.

In the UK, the two squirrel species people are most likely to talk about are:

Red squirrel (Sciurus vulgaris)

and

Grey squirrel (Sciurus carolinensis)

They may look similar at first glance, but their histories in Britain are very different.

Red squirrels are native to the UK.

Grey squirrels were introduced from North America during the 19th century.

Today, grey squirrels are widespread across much of England and Wales, while red squirrels survive mainly in strongholds in Scotland, parts of northern England, Anglesey, the Isle of Wight and some other protected areas.

🔴 Red squirrel or grey squirrel?

Red squirrels are usually smaller and more delicate-looking than grey squirrels.

They often have:

reddish-brown fur • pale undersides • large bushy tails • distinctive ear tufts

Their colour can vary considerably and isn't always bright red.

Grey squirrels are usually larger and heavier, with:

grey fur • white or pale undersides • broad bushy tails

Despite the name, some grey squirrels can have rusty or brownish patches in their coat.

So colour alone isn't always enough for identification.

🌳 Where do squirrels live?

Squirrels are strongly associated with woodland.

They can live in:

broadleaved woodland • conifer woodland • mixed woodland • parks • gardens • large estates • urban green spaces

Grey squirrels adapt particularly well to towns and cities, which is why they are commonly seen in parks and gardens.

Red squirrels tend to do best in areas where competition from grey squirrels is lower.

Some conifer forests can provide valuable refuges for red squirrels because the habitat may be less favourable for greys.

🏡 Where do squirrels sleep?

A squirrel's nest is called a drey.

Dreys are usually built high in trees using:

twigs • leaves • moss • grass • bark

From the outside, a drey can look like a large untidy ball of leaves wedged between branches.

Inside, however, it may be lined with softer materials.

Squirrels may have more than one drey within their territory.

They can also sometimes use tree holes and cavities.

🌰 What do squirrels eat?

Squirrels are omnivorous, although much of their diet is plant-based.

They may eat:

acorns • hazelnuts • seeds • buds • shoots • fungi • berries • fruit

They can also sometimes eat:

insects • eggs • young birds

Their diet changes according to season and what food is available.

Acorns and other nuts become particularly important during autumn.

🍂 Squirrels and autumn

Autumn is an important season for squirrels.

They spend large amounts of time feeding and collecting food before winter.

Squirrels hide food in many different places in a behaviour called caching.

This might involve burying individual nuts in soil or hiding them under leaves.

Unlike some animals, squirrels don't store everything in one giant pantry.

They make many separate caches.

This is called scatter hoarding.

🌰 Do squirrels remember where they hide their food?

Yes — but not perfectly.

Squirrels use memory, scent and environmental clues to relocate many of their hidden stores.

But some cached nuts are forgotten.

And that can be very useful for woodland.

A forgotten acorn or hazelnut may eventually germinate and grow.

So squirrels can unintentionally help spread trees.

That makes them an important example of seed dispersal.

🌳 Tree produces seed
→ 🐿️ Squirrel carries seed
→ 🌰 Squirrel buries seed
→ 🤔 Seed is forgotten
→ 🌱 New plant grows

❄️ Do squirrels hibernate?

No.

Neither red nor grey squirrels truly hibernate.

They remain active throughout winter, although they may spend longer inside their dreys during particularly bad weather.

Their autumn food caches help them survive times when food is harder to find.

🐿️ How do squirrels move through trees?

Squirrels are extremely agile.

Their adaptations include:

strong hind legs • sharp curved claws • flexible ankles • long tails

A squirrel can rotate its back feet so that its claws help grip bark when moving head-first down a tree.

Its tail also helps with balance when running and jumping between branches.

The tail can additionally be used for warmth and communication.

🪂 Can squirrels survive big falls?

Squirrels are surprisingly good at surviving falls because they are small, lightweight and adapted for climbing.

Their limbs and tails help stabilise them as they fall.

That doesn't mean they are immune to injury, but their size means they reach a lower terminal velocity than much heavier animals.

This is one of those facts that sounds ridiculous until you remember physics is doing a lot of the work. 😂

👶 Baby squirrels

Baby squirrels are often called kits or kittens.

They are born:

blind • hairless • completely dependent on their mother

As they grow, their fur develops, their eyes open and they become increasingly mobile.

Young squirrels eventually begin leaving the nest and learning how to climb, forage and survive independently.

Red and grey squirrels can both produce more than one litter in favourable years.

🦅 What eats squirrels?

Squirrels are prey for several predators.

Depending on location and circumstances, predators may include:

birds of prey • foxes • pine martens • domestic cats

Young squirrels are generally more vulnerable.

The relationship between squirrels and predators becomes particularly interesting when looking at pine martens.

Research has shown that where pine martens recover, grey squirrel numbers may decline, which can indirectly benefit red squirrels.

🔴 Why are red squirrels declining?

Red squirrels have suffered major declines across much of Britain.

Several factors are involved, but two of the most important are:

competition with grey squirrels

and

squirrelpox virus

Grey squirrels are larger and can compete very effectivelyfor food and habitat.

They also carry squirrelpox virus.

Grey squirrels are generally resistant to the disease, but red squirrels can become seriously ill and die.

This means grey squirrels can affect red squirrels through both competition and disease transmission.

🦠 What is squirrelpox?

Squirrelpox is a viral disease.

Grey squirrels can carry the virus without becoming seriously ill.

Red squirrels are much more vulnerable.

Symptoms in affected red squirrels can include lesions around the:

eyes • nose • mouth • paws

Because the disease can spread between squirrels, conservation organisations sometimes restrict feeding or access during outbreaks.

This is an important lesson that well-meaning human actions can sometimes accidentally make disease transmission worse.

Feeding stations that attract many animals into one small area can increase contact between individuals.

⚠️ Why are grey squirrels called invasive?

Grey squirrels are classed as a non-native invasive species in Britain.

That does not mean an individual grey squirrel is behaving badly.

It simply means humans introduced the species to a place where it didn't naturally occur, and its presence has had significant ecological effects.

This distinction is worth making with children.

An invasive species isn't “evil”.

It is a species living outside its natural range that causes ecological, economic or environmental problems.

The problem began because of human introduction, not because the animal made a decision to invade Britain.

🚢 How did grey squirrels arrive in Britain?

Grey squirrels were introduced from North America during the late 19th and early 20th centuries.

They were deliberately released in parks and estates because people considered them attractive additions to the landscape.

At the time, people didn't understand the long-term ecological consequences.

Once established, grey squirrels spread widely.

🔴 Where do red squirrels still live?

Red squirrels remain strongest in Scotland, which now supports the majority of Britain's population.

Important populations also survive in parts of:

Northern England • Anglesey • Isle of Wight

Conservation projects work to protect and reconnect suitable habitats.

Some island populations have extra protection because grey squirrels are absent or heavily controlled.

These areas can act as important refuges.

🌲 Why can conifer forests help red squirrels?

This seems counterintuitive because people often associate wildlife conservation with broadleaved woodland.

But red squirrels can use seeds from conifer trees effectively.

Grey squirrels often do better in broadleaved woodland rich in large seeds such as acorns.

Some conifer landscapes therefore give red squirrels a competitive advantage.

That doesn't mean every forest should become conifers.

It means conservation sometimes involves understanding the specific needs and competitive relationships of particular species.

🌳 Squirrels and woodland ecology

Squirrels interact with trees in many ways.

They:

eat seeds • bury seeds • disperse seeds • eat fungi • strip bark • use branches for travel • use trees for nesting

Some of those effects are helpful to woodland regeneration.

Others can cause damage.

Grey squirrels are particularly known for bark stripping.

🪵 Why do squirrels strip bark?

Squirrels sometimes remove bark from trees to reach the nutritious tissues underneath.

This behaviour can damage the tree.

Severe stripping can kill branches or weaken young trees.

Grey squirrel bark stripping can be a significant problem in commercial forestry and woodland management.

So squirrels can be both:

important parts of woodland ecosystems

and

a source of woodland damage

Nature rarely fits neatly into “helpful” or “harmful”.

🍄 Squirrels and fungi

Squirrels don't only eat nuts.

They can eat various fungi, including mushrooms and truffles.

By consuming fungi and moving around the woodland, mammals can help spread fungal spores.

Fungi themselves are extremely important to woodland ecosystems because many form underground relationships with trees.

So a squirrel eating a mushroom can be part of a much bigger ecological network.

🧠 How intelligent are squirrels?

Squirrels have excellent spatial memory and strong problem-solving abilities.

They need to remember:

food locations • safe routes • threats • nesting places

Experiments have shown squirrels can learn how to solve unfamiliar problems to reach food.

Urban squirrels can become especially skilled at navigating complicated environments created by humans.

That intelligence is one reason bird feeders frequently become:

Squirrel engineering challenges accidentally funded by humans.

🐦 Squirrels and bird feeders

Grey squirrels are famous for raiding bird feeders.

They may eat:

sunflower seeds • peanuts • other seed mixes

This can create competition with garden birds.

Special squirrel-resistant feeders can reduce access, but few things test human confidence quite like watching a grey squirrel spend five minutes dismantling the supposedly squirrel-proof system. 😂

Feeding wildlife also needs sensible hygiene.

Feeders should be kept clean, and old food should not be allowed to accumulate.

🌳 How can we help red squirrels?

Conservation measures include:

protecting suitable woodland • connecting fragmented habitat • monitoring disease • managing grey squirrel populations in key areas • supporting red squirrel refuges • preventing grey squirrels reaching protected islands

People visiting red squirrel areas should follow local guidance, particularly during disease outbreaks.

Pets can also pose a risk, so responsible control around wildlife is useful.

🛣️ Human dangers

Squirrels face dangers created by modern landscapes.

These include:

road traffic • habitat fragmentation • development • disease • loss of woodland • domestic animals

Roads can split woodland populations and create dangerous barriers.

Connecting habitats through woodland corridors and appropriate wildlife infrastructure can therefore help many species, not only squirrels.

🌳 Fragmented woodland

A woodland may appear large on a map, but if it is divided by:

roads • housing • cleared land • intensive farmland

animals may struggle to move safely between sections.

Connected habitats allow wildlife to find:

food • mates • nesting sites • new territories

This is why hedgerows, tree lines and woodland corridors can be so important.

A squirrel may physically be able to cross open ground, but doing so can expose it to predators and vehicles.

🔴 Red squirrels and conservation symbolism

The red squirrel has become an important symbol of British wildlife conservation.

People often feel particularly strongly about red squirrels because they represent a native species that has disappeared from much of its former range.

But successful conservation isn't simply about loving one attractive species.

Protecting red squirrels can also mean protecting:

woodland habitats • trees • fungi • insects • birds • other mammals

This is why conservation often focuses on ecosystems rather than individual animals alone.

📜 Squirrels in British history

Squirrels have lived alongside humans in Britain for centuries.

Red squirrel fur was historically used for clothing and decoration, while squirrel pelts were traded across Europe.

Squirrels have also appeared in art, literature and heraldic imagery.

Their behaviours, particularly collecting and storing food, meant people naturally began associating them with:

preparation • saving • thrift • foresight

The idea of “squirrelling something away” still survives in English today.

To squirrel something away means to hide or save it for later.

That phrase comes directly from the animal's food-caching behaviour.

📚 Squirrels in stories

Squirrels feature frequently in British children's literature and traditional storytelling.

They're often portrayed as:

busy • clever • curious • energetic • organised

Writers have naturally been inspired by their very visible autumn behaviour of gathering nuts.

Of course, real squirrels aren't collecting food because they understand the moral importance of being organised.

They're responding to evolved survival behaviours.

But that behaviour provides storytellers with an easy human parallel.

✨ Squirrels in folklore and symbolism

Compared with animals such as owls, crows or hares, squirrels have a smaller body of well-known British magical folklore.

However, their natural behaviours have inspired symbolic associations.

These include:

preparation • abundance • resourcefulness • energy • adaptability • planning • balance

The squirrel preparing for winter makes it an obvious symbol of thinking ahead.

Its ability to move confidently through branches can also inspire modern ideas around:

trust • agility • knowing when to move and when to pause

These are modern symbolic interpretations rather than universal ancient beliefs.

🌰 Squirrels and abundance

Because squirrels are so closely associated with collecting nuts and seeds, they can be linked symbolically with abundance and harvest.

Autumn provides:

🌰 nuts
🍄 fungi
🌾 seeds
🍂 changing woodland

and squirrels visibly respond by collecting resources.

That makes them a natural modern symbol for:

gathering what you need • appreciating available resources • preparing for leaner times

🧙 Squirrels in modern magical traditions

In contemporary nature-based spirituality, squirrels may be associated symbolically with:

prosperity • preparation • resourcefulness • playfulness • adaptability • abundance

Their caching behaviour can represent saving energy or resources.

Their fast movement can symbolise action and opportunity.

But squirrels also spend time resting and observing, so they can represent the balance between:

activity and rest

or

preparation and enjoyment.

Again, these are modern magical associations, rather than established ancient British squirrel mythology.

🌳 Red squirrel folklore vs modern conservation

There's an interesting contrast available here.

Historically, squirrels could be treated as animals to be:

hunted • trapped • used for fur • controlled

Today, red squirrels are often treated as treasured wildlife needing active protection.

That shows how human attitudes towards animals can change dramatically.

A species can move from being viewed primarily as a resource or pest to being considered an important part of national natural heritage.

🐿️ Grey squirrels: villain or victim?

Grey squirrels cause genuine conservation problems.

But the animals themselves didn't choose to cross the Atlantic.

Humans brought them here.

So it is possible to hold two ideas at once:

Grey squirrels have contributed to serious ecological problems.

and

Grey squirrels are still animals behaving naturally within the environment humans placed them in.

🔎 Squirrel Fact or Myth?

“Squirrels hibernate all winter.”
❌ Myth.

“Squirrels bury nuts.”
✅ Fact.

“Every buried nut is remembered.”
❌ Myth.

“Forgotten nuts can grow into trees.”
✅ Fact.

“Grey squirrels are native to Britain.”
❌ Myth.

“Red squirrels can catch squirrelpox from grey squirrels.”
✅ Fact.

“An invasive species is a bad or evil animal.”
❌ Myth.

“Human actions introduced grey squirrels into Britain.”
✅ Fact.

🍂 A year in the life of a squirrel

🌱 Spring

Food becomes increasingly available and breeding activity continues. Young squirrels may be raised in dreys.

☀️ Summer

Squirrels forage among leaves, seeds, buds and other food sources. Young squirrels become increasingly independent.

🍂 Autumn

Nuts and seeds become abundant. Squirrels spend considerable time caching food for later.

❄️ Winter

Squirrels remain active but may spend more time sheltering during poor weather and rely partly on stored food.