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Hedgehog found in winter: what should you do?

A hedgehog found in winter is often hibernating and needs nothing from you. Good intentions can harm it: milk, bread, or taking a healthy animal indoors. First work out whether it is asleep in its nest or out in the open and unwell.

A southern white-breasted hedgehog with a pale chest and grey-brown spines on a light stone surface
Photo: Nevit Dilmen / Wikimedia Commons, CC BY-SA 3.0; resized. Erinaceus concolor, Istanbul, Turkey. · CC BY-SA 3.0

I found a hedgehog in winter. What should I do?

First, look at where it is and how it behaves. A hedgehog curled up and still in a pile of leaves, under logs or in another sheltered spot is most likely hibernating: cover it back up and leave it alone.

If it is out in the open in daylight, wobbling, injured or has flies around it, it needs help: protect your hands, put it in a box and contact a vet.

Good intentions can harm a hedgehog found in winter. Never give it milk or bread, and do not take a healthy hedgehog indoors. Read more about the species on its profile: southern white-breasted hedgehog.

What does what you see mean?

The table lists the most common situations. Each one is explained in more detail below.

What you seeWhat it meansWhat to do
A curled-up, motionless hedgehog in leaves or under logsIt is most likely hibernatingGently cover it with leaves again and leave
A hedgehog out in daylight, in the openIt may be sick or injuredPick it up with gloves, put it in a box, call a vet
It wobbles, walks in circles or has flies around itIt needs help urgentlyTake it to a vet as soon as possible
A hedgehog walking at night or on a mild winter dayHedgehogs sometimes change nests in winterWatch from a distance and do not touch it

Is it hibernating or dead?

A hibernating hedgehog can look lifeless. According to the British Hedgehog Preservation Society, during hibernation its breathing almost stops, about one breath every few minutes, and its body temperature can fall to around 10°C or lower. A cold, still hedgehog is therefore not necessarily dead.

Do not prod or dig it out to check. If it lies in a sheltered nest, cover it back up and leave it. If it lies out in the open, injured or in an unusual place, treat it as a hedgehog that needs help.

A hedgehog curled into a tight ball of spines, lying motionless in short grass
Photo: Jamain / Wikimedia Commons, CC BY-SA 3.0; resized. Belgium, 13 November 2013; the photographer titled it “Hedgehog, dead or in hibernation?”. · CC BY-SA 3.0

Which hedgehog lives in Georgia?

Georgia's hedgehog is the southern white-breasted hedgehog (Erinaceus concolor); the 2023 checklist of Georgia's insectivores lists no other hedgehog. In Georgian it is often called the “European hedgehog”, although the western European hedgehog (Erinaceus europaeus) does not live in Georgia.

Most practical advice on hedgehogs in winter comes from British organisations and was written for the western European hedgehog, a close relative. Use it as general guidance: our sources give no exact hibernation months or weights for Georgia.

A hedgehog among tall green grass and garden plants at night, seen from above
Photo: David Osipov / Wikimedia Commons, CC0; cropped and resized. Erinaceus concolor, Orkhevi, Tbilisi, 5 April 2023. · CC0 1.0

Why might you see a hedgehog outside in winter?

According to the British Hedgehog Preservation Society, hedgehogs wake often during hibernation but rarely leave the nest; if the nest gets too cold, they may build a new one. Disturbance or unexpectedly warm weather can also wake them.

Hedgehog Street notes that each hedgehog is likely to move nest at least once during the winter, so it can sometimes be seen out and about, and that in mild winters hedgehogs can stay active into November and December.

A hedgehog out in daylight is a different matter. According to the Wildlife Aid Foundation, unless it is a warm winter day or the female is pregnant, this almost certainly means something is wrong.

A southern white-breasted hedgehog with a pale belly walking across gravel at night
Photo: Jan Ebr / Wikimedia Commons, CC BY 4.0; resized. Erinaceus concolor, Turkey. · CC BY 4.0

When does a hedgehog need help?

The British Hedgehog Preservation Society and the Wildlife Aid Foundation name these signs. If you see any of them, the hedgehog needs help.

  • It is lethargic or lying out in the open.
  • It wobbles, staggers or walks in circles.
  • It is lying asleep in the sun.
  • It has flies around it, or it is injured.
  • It is trapped, for example in netting or a hole.
  • It is out in daylight.
  • It looks very small for winter: the British Hedgehog Preservation Society calls young hedgehogs under 450 g vulnerable, and the Wildlife Aid Foundation says hedgehogs under 600 g must go to a wildlife centre.

What if you disturbed a hibernating hedgehog?

Hedgehog Street warns that any disturbance during hibernation can be extremely dangerous. The Wildlife Aid Foundation advises against moving a hedgehog that is hibernating or about to hibernate, and to cover an uncovered nest back up quickly.

  1. Stop working in that spot.
  2. Gently put the leaves or nest material back over the hedgehog.
  3. Do not move it to another place.
  4. Do not take it into the house, shed or garage.
  5. Leave the spot alone and keep away from it for the rest of the winter.

How do you help a sick or injured hedgehog?

These steps follow the first aid advice of the British Hedgehog Preservation Society. They are only for the time until a vet sees the hedgehog.

  1. Protect your hands with gardening gloves or a folded towel and pick the hedgehog up.
  2. Put it in a deep-sided box with an old towel or fleece in the bottom so it can hide.
  3. Wrap a hot water bottle in a towel and put it in the box, leaving room for the hedgehog to move off it. Keep the bottle warm: a cooled one makes things worse.
  4. Keep the box in a quiet place.
  5. Offer fresh water and meaty cat or dog food. Never milk or bread.
  6. Contact a vet as soon as possible. If the hedgehog is clearly in pain, take it to a vet straight away.

Why are milk and bread harmful?

According to the RSPCA, hedgehogs are lactose intolerant, so they should never be given milk. Bread is not nutritious for them.

The Wildlife Aid Foundation warns that bread and milk is not a healthy diet for this carnivorous mammal and can be fatal to hedgehogs. It also advises against peanuts and mealworms.

Why not take a healthy hedgehog indoors?

The British Hedgehog Preservation Society discourages keeping healthy hedgehogs in sheds or garages over winter to protect them from the cold.

Warmth does not help a hibernating hedgehog: according to the same society, at about 10°C it uses up its fat reserves twice as fast as at the optimum of about 4°C. A wild hedgehog is also not a pet; if it is healthy, leave it where it is.

How do you keep hedgehogs safe in the garden in autumn and winter?

The RSPCA and the Wildlife Aid Foundation name these risks to hedgehogs during autumn and winter garden work.

  • Before burning a pile of leaves or branches, check it: the RSPCA warns that hedgehogs may nest in bonfire piles.
  • Leave leaf and log piles in place: they are where hedgehogs build their winter nests.
  • Take care with strimmers, mowers and garden forks: the Wildlife Aid Foundation sees serious injuries from them.
  • If a hedgehog is caught in netting, cut the netting free around it and take the hedgehog to a vet or wildlife rescue.

Frequently asked questions

Yes. When it gets cold, hedgehogs hibernate. According to the British Hedgehog Preservation Society, the timing depends on the weather; in Britain it usually starts between November and January. Our sources give no exact months for Georgia.

Take it to a vet or a wildlife rescue straight away: the Wildlife Aid Foundation says a hedgehog hurt in a bonfire needs help immediately. Next time, check leaf and branch piles before burning them.

Only if it needs help. Then the British Hedgehog Preservation Society advises fresh water and meaty cat or dog food in the box until you reach a vet. Leave a healthy hedgehog alone.

Only when it needs help. Wear gardening gloves or use a folded towel to protect your hands from the spines. Do not pick up a healthy hedgehog.

British organisations treat a small hedgehog in autumn and winter as at risk: the British Hedgehog Preservation Society calls young hedgehogs under 450 g vulnerable, and the Wildlife Aid Foundation says a hedgehog under 600 g must go to a wildlife centre. These figures come from the United Kingdom; ask a vet.

Related guides

Related species

Sources and supported claims

  • British Hedgehog Preservation Society — Hedgehog First Aid Advice

    Signs a hedgehog needs help (lethargic, lying in the open, flies, wobbly, injured, trapped); gloves or a folded towel; a deep-sided box with a towel or fleece; a wrapped hot water bottle with room to move off it, kept warm; a quiet place; fresh water and meaty cat or dog food; a vet straight away if in obvious pain.

  • British Hedgehog Preservation Society — Hibernation

    Hibernation timing depends on temperature (usually starting November to January in Britain); hedgehogs wake often but rarely leave the nest and may build a new one; disturbance or warm weather can wake them; breathing about once every few minutes and body temperature down to 10°C or lower; young under 450 g vulnerable; keeping healthy hedgehogs in sheds or garages over winter discouraged; fat used twice as fast at 10°C as at 4°C.

  • RSPCA — Hedgehogs

    A hedgehog seen in daytime may be sick or injured; in winter keep an eye in case hibernation was disturbed; never give milk (hedgehogs are lactose intolerant) or bread (not nutritious); hibernation nests in leaf or log piles; check bonfires before lighting.

  • Wildlife Aid Foundation — Helping Hedgehogs

    A hedgehog out in daylight (unless pregnant or on a warm winter day) almost certainly has a problem; asleep in the sun, staggering or circling needs a rescue centre; under 600 g must go to a wildlife centre; do not move hibernating hedgehogs; cover an uncovered nest back up; bread and milk can be fatal; no peanuts or mealworms; injuries from strimmers, mowers and forks; cut netting free and take the hedgehog to a rescue; a hedgehog hurt in a bonfire must go to a rescue or vet immediately.

  • Hedgehog Street (BHPS and PTES) — Hibernation

    Any disturbance during hibernation can be extremely dangerous; each hedgehog is likely to move nest at least once in winter and may be seen out; in mild winters hedgehogs can stay active into November and December.

  • Kandaurov, Bukhnikashvili, Sheklashvili & Natradze 2023 — Insectivores of Georgia, 1864–2022 (Biodiversity Data Journal)

    Erinaceus concolor is the only hedgehog in the checklist of Georgia's insectivores.