British Hedgehog Preservation Society – Frequently asked questions.

Please feel free to copy and distribute or display to educate others about hedgehogs and how we can help them.

What food should I offer to my hedgehog visitors?

The best things to offer are good quality meaty hedgehog food or cat biscuits. The only drink that should be offered is water (especially in dry weather and when offering dry food).

There’s a hedgehog in my garden sunbathing, is that ok?

No, it isn’t. Hedgehogs’ shouldn’t sunbathe and if you see one doing this it is in urgent need of help. Please use gardening gloves or a folded towel to pick it up, pop it into a high sided box with a towel or fleece in the bottom, keep it warm on a covered warm hot water bottle (even in hot weather), offer suitable food and water (see above) and then call BHPS on 01584 890 801 for further advice as soon as possible.

I’ve seen a hedgehog that looks ‘drunk’, is that ok?

Again, no, it isn’t ok. Hedgehogs in this state are actually hypothermic and in urgent need of help. Please offer the first aid described above and call us as soon as possible.

Do all hedgehogs have fleas and do they need them?

Not all hedgehogs have fleas; many of those rescued have none. However, hedgehogs do not NEED their fleas to survive, that’s an old wives tale. Hedgehog fleas are host specific so while they may jump onto a cat or dog, they won’t infest them.

Help! I’ve harmed a hedgehog whilst strimming.

Undoubtedly one of the most worrying calls we receive. PLEASE check areas thoroughly before strimming or mowing. These injuries are usually horrific and the hedgehog often has to be put to sleep, of course many are killed instantly with this kind of accident. Do check for hoglets as the nest you have strimmed could be a nursery nest.

Are Hedgehogs meant to be out in the daylight?

Not usually no. Hedgehogs are nocturnal, which means they shouldn’t really be seen out in daylight hours. Some of the exceptions to this are pregnant females gathering nesting materials just before she gives birth, or a new ‘Mum’ taking a break from the nest to get food and water while her young sleep. Sometimes, when the nights are short, a hungry hedgehog may forage around dusk and dawn. However, these hedgehogs would move quickly with purpose. If a hedgehog is lethargic, lay out, has flies around it, is wobbly, or gives you any other cause for concern, please call us for advice ASAP on 01584 890 801.

My dog doesn’t like hedgehogs in the garden, can you move it?

The answer is that unless you are prepared to hedgehog proof the entire garden, there is no point in moving the resident hedgehogs as others from the local population will very likely move into the vacated area. If you are prepared to do this work, the best thing is to contact a local carer to see if they can safely relocate the hedgehog (avoiding baby season). Otherwise, training the dog to leave hedgehogs alone is the ideal solution, taking the dog out for its ‘after dark’ run in the garden on a lead, using a muzzle and making lots of noise before the dog goes out to warn the hedgehog something is happening can help. Hedgehogs often have a routine so if you see a hedgehog about at a certain time it is likely to be around near that time the next night – avoid letting the dog out at those times.

I want a hedgehog for my garden; can I just take one from the wild?

No! Please don’t do this. It’s great that you want to encourage hedgehogs into your garden, but taking one from an area where it knows food and water sources to an unknown area isn’t fair. More worryingly, it could have dependent young in a nest, without its return, the nest will fail and the young won’t survive. Finally, if hedgehogs aren’t already in your garden, there might be a good reason for this. We have a leaflet available on this subject on here , or contact us for paper copy.

Can I ‘mark’ my hedgehogs?

We’re pretty sure a hedgehog would rather not be marked, but if you are going to do it, please do ensure that you use a non-toxic water-based marker and mark just a few spines of the hedgehog. Keep the mark away from the hedgehog’s face and mark it in the garden on the ground rather than picking it up/bringing it indoors. Please don’t use red as people may mistake it for blood and ‘rescue’ it.  Do not make hedgehog conspicuous to predators.  We have seen some very sad images of poor hedgehogs practically covered in paint!  If you are watching the hedgehogs on a wildlife camera you will often be able to tell them apart over time without the need for marking.

Hedgehog Research – why do we do it and what are the rules?

It is now well known that the population of hedgehogs in Britain is suffering from a serious decline. The most recent analysis of the research done through the combined work of the British Hedgehog Preservation Society and the People’s Trust for Endangered Species indicates that urban populations have fallen by up to 30% and rural populations by at least 50% since the turn of the century.

At the heart of our response to this knowledge has to be rigorous science. The only way we will be able to convince those responsible for changes to conservation policy on a national level will be to present a case that is backed up with robust evidence.

Collection of this evidence requires further research. And the main supporters and instigators of research to benefit hedgehogs in Britain are the BHPS and the PTES.

All research projects have to meet a series of demanding tests before they are allowed to be undertaken. There are legal requirements, along with ethical and practical considerations.


Hedgehogs are protected, in England, Scotland and Wales, under the Wildlife and Countryside Act 1981, Schedule 6 and in Northern Ireland under the Wildlife (NI) Order 1985, Schedules 6&7. What this means is they are

protected from being killed or taken by certain methods under Section 11(1) of the Wildlife and Countryside Act 1981. The methods listed are: self-locking snares, bows, crossbows, explosives (other than ammunition for a firearm), or live decoys. The species listed are also protected from the following activities: trap, snare or net, electrical device for killing or stunning, poisonous, poisoned or stupefying substances or any other gas or smoke, automatic or semi-automatic weapon, device for illuminating a target or sighting device for night shooting, artificial light, mirror or other dazzling device, sound recording, and mechanically propelled vehicle in immediate pursuit.”


Licences to undertake research come from Natural England, Natural Resources Wales, Scottish Natural Heritage and the Northern Ireland Environment Agency.

A survey licence is required for work on hedgehogs if the animals are to be trapped or taken with the use of artificial light, such a torch or spotlight.

A survey licence is not required: for surveys of hedgehog field signs, for direct observation or for presence/absence surveys where they are observed or detected without ‘taking’ (such as trapping or handling) e.g. for the use of footprint tunnels, remote camera traps, or for habitat appraisal or general ecological survey purposes.

In addition to this, anyone applying sedatives to animals for research purposes must be a vet or licensed under the Animals (Scientific Procedures) Act 1986.

The Chartered Institute of Ecology and Environmental Management has also put together a series of criteria they consider to be a minimum for research to be undertaken:


Individuals should have a knowledge and understanding of:

  • conservation status
  • distribution
  • threats to populations, species range (including introduced populations) and species survival
  • hedgehog ecology, breeding biology and behavior
  • known ecological requirements
  • legal protection
  • licensing and permissions
  • appropriate survey seasons
  • survey methods used to survey for hedgehogs (including trapping, marking/tagging, field searching and using 
footprint tunnels and camera traps) and the strengths, weaknesses and limitations of these methods
  • appropriate equipment, methods and licensing requirements for humane live-capture, handling and sedation
of hedgehogs (if intending to use these techniques) and the legal issues surrounding potential by-catch
  • range of factors that might lead to bias in the survey results, and false negatives
  • sources of information on known occurrence and distribution of hedgehogs (including NBN Gateway, local 
biological/environmental records and local contacts)
  • metadata standards / data sharing
  • health and safety and welfare issues commonly associated with surveying for hedgehogs (including live- 
trapping and handling of wild animals if relevant).


Individuals should have skills and experience enabling them to confidently:

  • identify field signs for hedgehogs
  • assess habitat potential for hedgehogs
  • scope fieldwork appropriately
  • plan and implement sound scientific surveys (appreciating the effect of season and habitat on survey methods)
  • use relevant non-invasive survey methods for hedgehogs
  • analyse and interpret survey data
  • take appropriate health and safety precautions.

If trapping is used, individuals should also be able to:

  • deploy and monitor live traps effectively
  • legally and humanely handle live hedgehogs
  • effectively record biometric data from live hedgehogs
  • legally and humanely mark/tag hedgehogs (if using this technique)
  • correctly handle a range of potential by-catch from live-traps (with due regard to relevant legislation).

Much of this material was put together by Dr Richard Yarnell and Dr Nigel Reeve on behalf of the CIEEM

In summary, the work that is commissioned by the BHPS and the PTES is required to meet the legal, practical and ethical demands above. Where there is evidence of the highest standards not being met, we would take immediate action to uncover what has gone wrong.

Sometimes appearances can be deceiving. The heat shrink plastic tags that are now the standard marking technique do not require plastic to be melted onto the spines and cause the hedgehog no trouble at all. It is not far off humans getting hair-extensions.

Hedgehogs are only tagged and released if in good health. There are times when a hedgehog will become poorly after release – and this can be distressing for all concerned.

If you find a hedgehog that is in a bad way and clearly marked and involved with research, please do contact the BHPS, after making sure the animal is safe and secure in a cardboard box (or similar) so that we can advise on the nearest rescue and also alert the researchers.

Without the work undertaken by researchers we will not be in a position to argue for better protection for hedgehogs. Research is crucial to furthering our understanding of the threats hedgehogs face and to formulating responses.