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Wildlife
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- - 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
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- - 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
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- - 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
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- - 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
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- - 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
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- - 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
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- - 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
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- - 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.

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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.

Hazel dormice

Hazel dormice are enigmatic and endearing. They are also threatened with extinction. Join us in helping to bring them back from the brink.

Hazel dormice

Hazel dormice are enigmatic and endearing. They are also threatened with extinction. Join us in helping to bring them back from the brink.

Our national monitoring shows the population of hazel dormice has declined by half since 2000, with the species hanging on mostly in southern parts of England and Wales. Climate change, as well as changes in woodland management, farming practices and loss of hedgerows, have all taken a heavy toll on their living space. Dormice are good indicators of animal and plant diversity, and dormouse-friendly habitats are also good for woodland birds, bats and butterflies which is why we’re working hard to reverse the decline and promote recovery in British woodlands.

State of Britain's Dormice report

Read our new report on Britain’s hazel dormice population and learn more about the latest threats.

View report
About hazel dormice

Find out where dormice live, what they look like, the threats they face and FAQ’s.

View dormouse facts
Dormouse conservation

Discover how we’re helping the dormice we have left and reintroducing them where they’ve gone extinct.

Conserving dormice
How you can help

How you can help dormice and donate to support our projects

Help hazel dormice
Surveying and monitoring

Find out how we monitor dormice through regular surveying, and enter data online. Learn how to look for signs of dormice and enter one off sightings.

Monitoring dormice
Dormouse protection

Dormice are highly protected. Find out how to work with the species, the implications for development, and explore training resources.

Dormouse licencing
Papers and publications

Read summaries of scientific papers on dormice and issues of The Dormouse Monitor.

Dormouse papers
Donate to dormice

Support our work to help hazel dormice today by giving a donation.

Donate