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Wildlife
- Close
- - We protect wildlife in Britain and around the world by bringing our most threatened species back from the brink of extinction. We do this through ground-breaking research, practical conservation and education, all with the help of our supporters.
Wild places
- Close
- - Some habitats contain such a richness of life that we need to protect them at all odds. We are working to preserve ancient woodlands, orchards and wood pastures and parklands, as well as the countless species they support.
What we do
- Close
- - Everything we do is based on scientific evidence. We gather this through surveys, which you can take part in, and by awarding research grants to the most inspiring scientists worldwide. This evidence guides our conservation efforts and is shared through our events and publications.
Who we are
- Close
- - People’s Trust for Endangered Species was set up in 1977 to save our wildlife. We are governed by a board of volunteer trustees and our team of staff are passionate about protecting endangered species and places.
Success stories
- Close
- - We strive to bring our most threatened species in the UK and around the world back from the brink of extinction. Our successes come from ground-breaking research, practical conservation and education, all with the help of our supporters.
Get involved
- Close
- - There are so many ways you can help save endangered species. Fancy taking part in a survey, joining us on a wildlife event or becoming a regular supporter?
Shop
- Close
- - Support our work in our shop with a range of charity gifts, home-ware, cards and more. 100% of the profits go directly to help wildlife both in the UK an overseas.
Donate
- Close
- - There is nothing natural about the alarming rate at which we are losing animals and their homes. It is absolutely avoidable. We can stop the loss of our wildlife – but we need your support. You can act now by choosing to give to our cause. Thank you.

One donation, twice the impact. From the 18th – 25th April your donation to protect ancient woodland will be doubled through the Big Give.

Home // Key species and habitats // Hazel dormice // Surveying and monitoring hazel dormice // National Dormouse Database (NDD)

National Dormouse Database (NDD)

Hazel-dormouse-in-Briddlesford-Woods---Isle-of-Wight-Credit-Clare-Pengelly

The National Dormouse Database was set up to record one-off sightings of dormice to provide information on their range and also where populations are likely to exist within their current known range. It is important to keep the information on where populations are likely to be up to date as Natural England will only accept a record of dormouse presence if it is no more than 3 years old.

From data in the NDD it is known that natural dormouse populations have become extinct in at least 17 counties of Britain.

A good animal record needs to contain the following information:

Who is the person who making the record, i.e. their name.
What the species is (if possible please send evidence of presence, i.e. a photo).
Where was the animal seen (this is usually a grid reference of where the animal was seen but it could be a postcode of the locality).
When was the animal seen (at least the month and year).

Hazel dormice are frequently misidentified. All records that are entered into the NDD will need to be verified and photographic evidence is very useful to aid this process. NDD records can be submitted here.

We have been working to save hazel dormice in the UK for over 20 years. Find out about our campaigns and how you can help.

How you can help