Wetter summer was good for butterflies, with average number of butterflies spotted highest for four years

• However, new 13-year trend figures show a worrying long-term decline

• Habitat loss biggest driver of decline; people urged to take action by creating a Wild Space

Results of Butterfly Conservation’s Big Butterfly Count 2023 have been released today, revealing a better picture for butterflies than had been feared.

Overall, participants of the Big Butterfly Count enjoyed seeing more butterflies this year than in the previous four summers. In total, over 1.5 million butterflies and day-flying moths were recorded from 14 July - 6 August. After an all-time low in 2022 of just nine individual butterflies spotted per Count, this year saw an increase to 12 butterflies recorded on average per Count.

However, this good news is in contrast with what the long-term trends are revealing. Released for the first time this year, these show that since the Big Butterfly Count started 13 years ago, many species have significantly decreased.

It is a further warning sign that nature everywhere is in crisis – butterflies, as well as forming a vital part of the food chain, are considered significant indicators of the health of the environment.

Following last summer’s heatwave and drought, scientists at Butterfly Conservation called on the public to help them understand the effect the extreme weather had on the UK’s butterflies. People responded in their thousands, with almost 95,000 citizen scientists taking part in this year’s Big Butterfly Count, conducting 136,719 15-minute Counts in gardens, parks, school grounds and the countryside.

Dr Zoe Randle, Senior Surveys Officer at Butterfly Conservation, said: “It’s wonderful that so many people have been out enjoying spotting butterflies. We had huge support for the Big Butterfly Count this year, and thanks to the many people who went out during those sunny intervals, we now know that the effects of last year’s drought were not as bad for butterflies as we had feared.

“The mixed weather this year has helped as there has been an abundance of green food plants available for caterpillars and plenty of nectar-rich flowers for adult butterflies. However, while the number of butterflies recorded this summer has been the highest since 2019, the longer-term trends show worrying declines for some of the UK’s most common butterfly species.”

The most-seen species this year was the Red Admiral, with 248,077 recorded - an increase of 338% on last year’s Count and the first time the species, which is increasing in the UK as a result of climate change, has taken the top spot.

Gatekeeper was next, with 222,896 sightings. This represents a 12% increase on last year and is a small, but welcome, boost for a species that has decreased by 28% since the Count began.

The Whites took the third and fourth spot, with 216,666 sightings of Large Whites and 190,506 of Small Whites, an 11% and 15% increase on 2022 respectively. Holly Blue had another good summer, with numbers up 66% on 2022, in keeping with its longer-term Big Butterfly Count trend of a 41% increase.

Species that saw a decline from last year include Ringlet, Common Blue and Speckled Wood, all of which also show long-term declines.

Although its numbers hardly changed compared to summer 2022, Green-veined White has the most severe Big Butterfly Count trend in the longer term, a decrease of 61%.

Dr Richard Fox, Head of Science at Butterfly Conservation, explained: “One of the biggest threats butterflies in the UK face is habitat loss. While the weather certainly has an impact on numbers from year to year, butterflies, moths and many other species can generally cope with variable weather. What they can’t cope with is habitat destruction.

“Butterflies need a place to live. If they can feed, breed and shelter, they can thrive. By creating a Wild Space in your outdoor area you can help to reverse the massive losses of wildlife-friendly habitat and start to turn around the fortunes of our declining butterflies."

Anyone, anywhere, can create a Wild Space. Whether it’s leaving a patch of long grass in your garden or planting a small selection of nectar rich plants on a balcony, the opportunities are vast and everyone can make a difference.

Dr Richard Fox concluded: “Nearly 137,000 Big Butterfly Counts were recorded this summer and if every single person who helped with the Count creates a Wild Space, we can build a UK-wide network of spaces for butterflies to feed, breed and shelter. By creating a Wild Space everyone can make a difference and help butterflies and moths thrive.”

Butterfly Conservation has free resources and guidance on creating a Wild Space available, including accessible, tailored, simple advice for anyone to have a go.

To find out more about Wild Spaces visit: https://wild-spaces.co.uk

To find out more about Butterfly Conservation visit: https://butterfly-conservation.org

BIG BUTTERFLY COUNT RESULTS 2023 CAN BE VIEWED HERE: (https://drive.google.com/drive/folders/1ksKfWS_NEx2vjfXiEiMJ3eKpkOsenqn1)

Next year’s Big Butterfly Count will take place from Friday 12th July – Sunday 4th August 2024.

This year, the Big Butterfly Count was sponsored by the DFN Foundation, a commissioning charity focused on influencing sustainable change in special needs education, supported employment, healthcare and conservation.

NOTES TO EDITORS

Full UK and Country-specific results from the Big Butterfly Count can be accessed here: (https://drive.google.com/drive/folders/1ksKfWS_NEx2vjfXiEiMJ3eKpkOsenqn1), along with images and footage for use with this story.

For further information or interviews, please contact the Butterfly Conservation Press Office on 01929 406005 or email news@butterfly-conservation.org

Butterfly Conservation is the UK charity dedicated to saving butterflies, moths and our environment. Our research provides advice on how to conserve and restore habitats. We run projects to protect more than 100 threatened species and we are involved in conserving hundreds of sites and reserves. www.butterfly-conservation.org @savebutterflies

The Big Butterfly Count is a UK-wide survey, run by Butterfly Conservation, aimed at helping us assess the health of our environment simply by counting the amount and type of butterflies (and some day-flying moths) we see. It’s so easy to do and is a fantastic activity for people from 3 to 103 years. All you have to do is spend 15 minutes in an outdoor space during sunny conditions and count the types and amount of butterflies you see. To find out more go to www.bigbutterflycount.org.

The DFN Foundation is a commissioning charity established in 2014 to make a positive difference in the lives of young people with special educational needs and disabilities.

Nearly in its 10th year, the DFN Foundation has grown to influence policy and funding developments in special needs education, employability, healthcare, and conservation.

The vision of the DFN Foundation is to transform life outcomes for people throughout the country, bringing positive and lasting change that unlocks natural potential and builds a more inclusive and environmentally conscious society. Its delivery partners are focused on influencing sustainable change in special needs education, supported employment, healthcare, and conservation.

For more information, please go to www.dfnfoundation.org

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