Get ready for survey season!
Its just less than a month to go until the start of UKBMS Transect surveys. Brush up on the survey method with our resources here - buff.ly/Qo4kgNX
Its just less than a month to go until the start of UKBMS Transect surveys. Brush up on the survey method with our resources here - buff.ly/Qo4kgNX
Guidance & recording forms | UKBMS
UKBMS Online Guidance - illustrated guidance for new UKBMS users getting started with data entry
buff.ly
March 9, 2026 at 12:00 PM
Get ready for survey season!
Its just less than a month to go until the start of UKBMS Transect surveys. Brush up on the survey method with our resources here - buff.ly/Qo4kgNX
Its just less than a month to go until the start of UKBMS Transect surveys. Brush up on the survey method with our resources here - buff.ly/Qo4kgNX
Catch up on the latest UKBMS news with our Summer eNewsletter.
This edition includes 2025 UKBMS results highlights, seasonal guidance, ways to get involved and FAQs from surveyors.
buff.ly/gRxnwuE
This edition includes 2025 UKBMS results highlights, seasonal guidance, ways to get involved and FAQs from surveyors.
buff.ly/gRxnwuE
June 19, 2026 at 11:01 AM
Catch up on the latest UKBMS news with our Summer eNewsletter.
This edition includes 2025 UKBMS results highlights, seasonal guidance, ways to get involved and FAQs from surveyors.
buff.ly/gRxnwuE
This edition includes 2025 UKBMS results highlights, seasonal guidance, ways to get involved and FAQs from surveyors.
buff.ly/gRxnwuE
Get ready for survey season!
Its only a month to go until the start of UKBMS Transect surveys. Brush up on the survey method with our resources here -
Its only a month to go until the start of UKBMS Transect surveys. Brush up on the survey method with our resources here -
Guidance & recording forms | UKBMS
UKBMS Online Guidance - illustrated guidance for new UKBMS users getting started with data entry
buff.ly
March 1, 2025 at 1:46 PM
Get ready for survey season!
Its only a month to go until the start of UKBMS Transect surveys. Brush up on the survey method with our resources here -
Its only a month to go until the start of UKBMS Transect surveys. Brush up on the survey method with our resources here -
UKBMS data is crucial for research. A new paper uses 45 yrs of UKBMS data to examine how extreme climate events affect butterfly populations in England. Heatwaves during hibernation or early life stages and heavy rain during later stages have -ve effects.
Its worth a read - buff.ly/nOU2Zod
Its worth a read - buff.ly/nOU2Zod
August 20, 2025 at 2:59 PM
UKBMS data is crucial for research. A new paper uses 45 yrs of UKBMS data to examine how extreme climate events affect butterfly populations in England. Heatwaves during hibernation or early life stages and heavy rain during later stages have -ve effects.
Its worth a read - buff.ly/nOU2Zod
Its worth a read - buff.ly/nOU2Zod
The UKBMS Spring Newsltter is out now!
Bringing you seasonal updates about the UKBMS. In this edition we have reminders to get you ready for the start of the season, a dayflying moth ID resource and opportunities to help monitor priority species.
ukbms.org/sites/defaul...
Bringing you seasonal updates about the UKBMS. In this edition we have reminders to get you ready for the start of the season, a dayflying moth ID resource and opportunities to help monitor priority species.
ukbms.org/sites/defaul...
ukbms.org
March 16, 2026 at 8:48 PM
The UKBMS Spring Newsltter is out now!
Bringing you seasonal updates about the UKBMS. In this edition we have reminders to get you ready for the start of the season, a dayflying moth ID resource and opportunities to help monitor priority species.
ukbms.org/sites/defaul...
Bringing you seasonal updates about the UKBMS. In this edition we have reminders to get you ready for the start of the season, a dayflying moth ID resource and opportunities to help monitor priority species.
ukbms.org/sites/defaul...
UKBMS results out today!
Results from fifty years of butterfly monitoring! The UKBMS data reveals declines in 33 species over the last 50 years.
Check out the full story below butterfly-conservation.org/news-and-blo...
And the full 2025 statistics can be found here: jncc.gov.uk/our-work/off...
Results from fifty years of butterfly monitoring! The UKBMS data reveals declines in 33 species over the last 50 years.
Check out the full story below butterfly-conservation.org/news-and-blo...
And the full 2025 statistics can be found here: jncc.gov.uk/our-work/off...
Fifty years of data reveal specialist butterflies disappearing across UK
An extraordinary dataset of over 44 million records from 782,000 volunteer surveys has revealed what has happened to the UK's butterflies as the national landscape has changed over the past 50…
butterfly-conservation.org
April 15, 2026 at 6:45 AM
UKBMS results out today!
Results from fifty years of butterfly monitoring! The UKBMS data reveals declines in 33 species over the last 50 years.
Check out the full story below butterfly-conservation.org/news-and-blo...
And the full 2025 statistics can be found here: jncc.gov.uk/our-work/off...
Results from fifty years of butterfly monitoring! The UKBMS data reveals declines in 33 species over the last 50 years.
Check out the full story below butterfly-conservation.org/news-and-blo...
And the full 2025 statistics can be found here: jncc.gov.uk/our-work/off...
New Year....New Challenge!
Could you help us to run the UKBMS surveys in your area? We are looking for volunteers to help co-ordinate the volunteers that walk transects or WCBS squares in these regions - Cumbria, Devon, Upper Thames, Highlands, Kent, Lincolnshire, West Mids
Could you help us to run the UKBMS surveys in your area? We are looking for volunteers to help co-ordinate the volunteers that walk transects or WCBS squares in these regions - Cumbria, Devon, Upper Thames, Highlands, Kent, Lincolnshire, West Mids
Regional co-ordinators | UKBMS
The network of volunteers surveying for the UKBMS in each area is coordinated by a voluntary regional coordinator.
buff.ly
January 14, 2025 at 12:00 PM
New Year....New Challenge!
Could you help us to run the UKBMS surveys in your area? We are looking for volunteers to help co-ordinate the volunteers that walk transects or WCBS squares in these regions - Cumbria, Devon, Upper Thames, Highlands, Kent, Lincolnshire, West Mids
Could you help us to run the UKBMS surveys in your area? We are looking for volunteers to help co-ordinate the volunteers that walk transects or WCBS squares in these regions - Cumbria, Devon, Upper Thames, Highlands, Kent, Lincolnshire, West Mids
Just published: UK and England butterfly population indicators using UKBMS data.
These show a long-term decline in the all-species index in the UK of 18% and a 37% decline for habitat specialists in the UK.
Check out the full statistics here ⬇️
www.gov.uk/government/s...
These show a long-term decline in the all-species index in the UK of 18% and a 37% decline for habitat specialists in the UK.
Check out the full statistics here ⬇️
www.gov.uk/government/s...
August 27, 2026 at 1:00 PM
Just published: UK and England butterfly population indicators using UKBMS data.
These show a long-term decline in the all-species index in the UK of 18% and a 37% decline for habitat specialists in the UK.
Check out the full statistics here ⬇️
www.gov.uk/government/s...
These show a long-term decline in the all-species index in the UK of 18% and a 37% decline for habitat specialists in the UK.
Check out the full statistics here ⬇️
www.gov.uk/government/s...
A nice encounter while walking my butterfly transect today. #ukbms #grasssnake
April 13, 2026 at 1:49 PM
A nice encounter while walking my butterfly transect today. #ukbms #grasssnake
Small Pearl-bordered Fritillary (Boloria selene) is really struggling in the UK, having lost almost three-quarters of its population since 1976 (72% decrease). Its numbers have been below average in 25 of the last 27 yrs and it had its worst year on record in 2024 at UKBMS sites. (📷Mark Searle)
April 5, 2025 at 7:03 AM
Small Pearl-bordered Fritillary (Boloria selene) is really struggling in the UK, having lost almost three-quarters of its population since 1976 (72% decrease). Its numbers have been below average in 25 of the last 27 yrs and it had its worst year on record in 2024 at UKBMS sites. (📷Mark Searle)
Next week sees the start of the 50th survey season for the UKBMS! #UKBMS50
We are excited to be reaching this milestone and looking forward to celebrating the fantastic volunteers that support the scheme.
We are excited to be reaching this milestone and looking forward to celebrating the fantastic volunteers that support the scheme.
March 27, 2025 at 12:01 PM
Next week sees the start of the 50th survey season for the UKBMS! #UKBMS50
We are excited to be reaching this milestone and looking forward to celebrating the fantastic volunteers that support the scheme.
We are excited to be reaching this milestone and looking forward to celebrating the fantastic volunteers that support the scheme.
Today at UKBMS HQ we are appreciating the work of the 70+ volunteer Transect Coordinators and WCBS Champions. They help to keep thousands of surveyors informed and engaged and help us to run the scheme. We thank you! Find your local Coordinator here -
Regional co-ordinators | UKBMS
The network of volunteers surveying for the UKBMS in each area is coordinated by a voluntary regional coordinator.
buff.ly
January 3, 2025 at 11:02 AM
Today at UKBMS HQ we are appreciating the work of the 70+ volunteer Transect Coordinators and WCBS Champions. They help to keep thousands of surveyors informed and engaged and help us to run the scheme. We thank you! Find your local Coordinator here -
Attention UKBMS surveyors!
We request that all UKBMS surveyors register on our volunteer portal called Assemble, this will give you access to lots of handy resources and greatly help us manage the 1000's of volunteers.
Get your registration code here: https://buff.ly/3PlenOE.
Thank you!
We request that all UKBMS surveyors register on our volunteer portal called Assemble, this will give you access to lots of handy resources and greatly help us manage the 1000's of volunteers.
Get your registration code here: https://buff.ly/3PlenOE.
Thank you!
February 19, 2025 at 1:43 PM
Attention UKBMS surveyors!
We request that all UKBMS surveyors register on our volunteer portal called Assemble, this will give you access to lots of handy resources and greatly help us manage the 1000's of volunteers.
Get your registration code here: https://buff.ly/3PlenOE.
Thank you!
We request that all UKBMS surveyors register on our volunteer portal called Assemble, this will give you access to lots of handy resources and greatly help us manage the 1000's of volunteers.
Get your registration code here: https://buff.ly/3PlenOE.
Thank you!
We're thrilled to share this film featuring some of the dedicated volunteers who monitor butterflies for the UKBMS
A huge thank you to them, and everyone who's supported the scheme over the last 50 years.
#UKBMS50
youtu.be/OrF5AgseX1U?...
A huge thank you to them, and everyone who's supported the scheme over the last 50 years.
#UKBMS50
youtu.be/OrF5AgseX1U?...
Celebrating 50 years of butterfly monitoring
YouTube video by Butterfly Conservation
youtu.be
October 30, 2025 at 9:56 AM
We're thrilled to share this film featuring some of the dedicated volunteers who monitor butterflies for the UKBMS
A huge thank you to them, and everyone who's supported the scheme over the last 50 years.
#UKBMS50
youtu.be/OrF5AgseX1U?...
A huge thank you to them, and everyone who's supported the scheme over the last 50 years.
#UKBMS50
youtu.be/OrF5AgseX1U?...
WEEK ONE!
The UKBMS surveys officially kick off today 🎺 🥳 🦋
If you're taking part, check the weather and choose a good day for your survey this week - temps above 13degrees, sun and light winds are best. Weeks run from each Wednesday to the following Tuesday this year.
Good luck!
The UKBMS surveys officially kick off today 🎺 🥳 🦋
If you're taking part, check the weather and choose a good day for your survey this week - temps above 13degrees, sun and light winds are best. Weeks run from each Wednesday to the following Tuesday this year.
Good luck!
April 1, 2026 at 9:00 AM
WEEK ONE!
The UKBMS surveys officially kick off today 🎺 🥳 🦋
If you're taking part, check the weather and choose a good day for your survey this week - temps above 13degrees, sun and light winds are best. Weeks run from each Wednesday to the following Tuesday this year.
Good luck!
The UKBMS surveys officially kick off today 🎺 🥳 🦋
If you're taking part, check the weather and choose a good day for your survey this week - temps above 13degrees, sun and light winds are best. Weeks run from each Wednesday to the following Tuesday this year.
Good luck!
This time next week we will be enjoying the UK Butterfly Recorder meeting #UKBRM
Lots of interesting talks and the first chance to see the official UKBMS results from 2024.
Book your free space here -
Lots of interesting talks and the first chance to see the official UKBMS results from 2024.
Book your free space here -
buff.ly
March 22, 2025 at 10:00 PM
This time next week we will be enjoying the UK Butterfly Recorder meeting #UKBRM
Lots of interesting talks and the first chance to see the official UKBMS results from 2024.
Book your free space here -
Lots of interesting talks and the first chance to see the official UKBMS results from 2024.
Book your free space here -
The recording of the UK Butterfly Recorders meeting is out!
You can catch up on the release of the 2024 UKBMS results, plus lots of other interesting butterfly talks.
Watch it here -
You can catch up on the release of the 2024 UKBMS results, plus lots of other interesting butterfly talks.
Watch it here -
UK Butterfly Recorders' Meeting 2025
A recording of the UK Butterfly Recorders' Meeting which took place virtually on the 29 March 2025.Chapters0:00 Welcome5:22 UKBMS 50th anniversary update - I...
www.youtube.com
April 10, 2025 at 11:35 AM
The recording of the UK Butterfly Recorders meeting is out!
You can catch up on the release of the 2024 UKBMS results, plus lots of other interesting butterfly talks.
Watch it here -
You can catch up on the release of the 2024 UKBMS results, plus lots of other interesting butterfly talks.
Watch it here -
Its week 22!
Did you know that the sightings you enter via UKBMS also connect to iRecord? This allows county recorders, species experts, and researchers to access them. If you have an iRecord account, you can view all your UKBMS records alongside your other records.
irecord.org.uk?check_logged...
Did you know that the sightings you enter via UKBMS also connect to iRecord? This allows county recorders, species experts, and researchers to access them. If you have an iRecord account, you can view all your UKBMS records alongside your other records.
irecord.org.uk?check_logged...
August 26, 2025 at 11:02 AM
Its week 22!
Did you know that the sightings you enter via UKBMS also connect to iRecord? This allows county recorders, species experts, and researchers to access them. If you have an iRecord account, you can view all your UKBMS records alongside your other records.
irecord.org.uk?check_logged...
Did you know that the sightings you enter via UKBMS also connect to iRecord? This allows county recorders, species experts, and researchers to access them. If you have an iRecord account, you can view all your UKBMS records alongside your other records.
irecord.org.uk?check_logged...
Today is the start of our 50th year surveying butterflies #UKBMS50!
The UKBMS is one of the longest running invert monitoring schemes in the world.
Get involved here - ukbms.org
@jncc.bsky.social
@savebutterflies.bsky.social
@btobirds.bsky.social
@ukceh.bsky.social
The UKBMS is one of the longest running invert monitoring schemes in the world.
Get involved here - ukbms.org
@jncc.bsky.social
@savebutterflies.bsky.social
@btobirds.bsky.social
@ukceh.bsky.social
April 1, 2025 at 12:00 AM
Today is the start of our 50th year surveying butterflies #UKBMS50!
The UKBMS is one of the longest running invert monitoring schemes in the world.
Get involved here - ukbms.org
@jncc.bsky.social
@savebutterflies.bsky.social
@btobirds.bsky.social
@ukceh.bsky.social
The UKBMS is one of the longest running invert monitoring schemes in the world.
Get involved here - ukbms.org
@jncc.bsky.social
@savebutterflies.bsky.social
@btobirds.bsky.social
@ukceh.bsky.social
UKBMS volunteers have walked a total of >1.5 million kilometres since 1976 at more than 7,600 sites to produce this incredible dataset.
That’s the equivalent of walking 40 times around the world – or to the moon and back twice.
Latest annual results: www.ukbms.org
3/3
That’s the equivalent of walking 40 times around the world – or to the moon and back twice.
Latest annual results: www.ukbms.org
3/3
April 15, 2026 at 8:53 AM
UKBMS volunteers have walked a total of >1.5 million kilometres since 1976 at more than 7,600 sites to produce this incredible dataset.
That’s the equivalent of walking 40 times around the world – or to the moon and back twice.
Latest annual results: www.ukbms.org
3/3
That’s the equivalent of walking 40 times around the world – or to the moon and back twice.
Latest annual results: www.ukbms.org
3/3
It's the start of week nine for UKBMS butterfly transects.
If you're walking a transect, enter your data on the UKBMS website ASAP so it's secure — once submitted it feeds into iRecord for county recorders and others to use.
If you're walking a transect, enter your data on the UKBMS website ASAP so it's secure — once submitted it feeds into iRecord for county recorders and others to use.
May 27, 2026 at 9:01 AM
It's the start of week nine for UKBMS butterfly transects.
If you're walking a transect, enter your data on the UKBMS website ASAP so it's secure — once submitted it feeds into iRecord for county recorders and others to use.
If you're walking a transect, enter your data on the UKBMS website ASAP so it's secure — once submitted it feeds into iRecord for county recorders and others to use.
Attention UKBMS surveyors!
We invite you to sign up on our volunteer platform, Assemble, this will greatly help us coordinate the 1000's of UKBMS volunteers.
Details were shared in the Winter Newsletter. Get your registration code here: https://buff.ly/3PlenOE.
Thank you!
We invite you to sign up on our volunteer platform, Assemble, this will greatly help us coordinate the 1000's of UKBMS volunteers.
Details were shared in the Winter Newsletter. Get your registration code here: https://buff.ly/3PlenOE.
Thank you!
January 19, 2025 at 12:00 PM
Attention UKBMS surveyors!
We invite you to sign up on our volunteer platform, Assemble, this will greatly help us coordinate the 1000's of UKBMS volunteers.
Details were shared in the Winter Newsletter. Get your registration code here: https://buff.ly/3PlenOE.
Thank you!
We invite you to sign up on our volunteer platform, Assemble, this will greatly help us coordinate the 1000's of UKBMS volunteers.
Details were shared in the Winter Newsletter. Get your registration code here: https://buff.ly/3PlenOE.
Thank you!
One month to go until the UKBMS 50th Anniversary Conference!
Are you joining us?
www.eventbrite.co.uk/e/uk-butterf...
#UKBMS50
Are you joining us?
www.eventbrite.co.uk/e/uk-butterf...
#UKBMS50
September 11, 2025 at 11:01 AM
One month to go until the UKBMS 50th Anniversary Conference!
Are you joining us?
www.eventbrite.co.uk/e/uk-butterf...
#UKBMS50
Are you joining us?
www.eventbrite.co.uk/e/uk-butterf...
#UKBMS50
UKBMS data feeds into UK government statistics to measure biodiversity. Each year, @jncc publish Biodiversity Indicators - giving a snapshot of how our biodiveristy is faring
buff.ly/Cw71ZAY
You can view the latest Biodiversity Indicators here - buff.ly/cyuIo2G
buff.ly/Cw71ZAY
You can view the latest Biodiversity Indicators here - buff.ly/cyuIo2G
UK biodiversity continues to decline, 2025 bioindicators show
Wallingford scientists contributed to the 2025 indicators with analysis of animal and plant trends.
www.bbc.co.uk
January 9, 2026 at 12:00 PM
UKBMS data feeds into UK government statistics to measure biodiversity. Each year, @jncc publish Biodiversity Indicators - giving a snapshot of how our biodiveristy is faring
buff.ly/Cw71ZAY
You can view the latest Biodiversity Indicators here - buff.ly/cyuIo2G
buff.ly/Cw71ZAY
You can view the latest Biodiversity Indicators here - buff.ly/cyuIo2G
Today is the start of week six of UKBMS butterfly transects.
Thousands of volunteers go out each week to walk a butterfly transect and contribute data to a fifty year-long dataset.
Want to get involved..?
Visit our website for all the info - ukbms.org
Thousands of volunteers go out each week to walk a butterfly transect and contribute data to a fifty year-long dataset.
Want to get involved..?
Visit our website for all the info - ukbms.org
May 6, 2026 at 9:01 AM
Today is the start of week six of UKBMS butterfly transects.
Thousands of volunteers go out each week to walk a butterfly transect and contribute data to a fifty year-long dataset.
Want to get involved..?
Visit our website for all the info - ukbms.org
Thousands of volunteers go out each week to walk a butterfly transect and contribute data to a fifty year-long dataset.
Want to get involved..?
Visit our website for all the info - ukbms.org