Butterfly transects are a way of measuring changes in the abundance and variety of butterflies present on a site from year to year. This requires a long-term commitment to record butterflies on a weekly basis throughout the six-month period in which butterflies fly in the UK, or if monitoring a single species, the flight period of that species. The data enables us to evaluate changes in butterfly populations and help identify the causes behind those changes.
If you are interested in becoming a volunteer transect recorder, please contact our Butterfly Recording Officer.
The UK Butterfly Monitoring Scheme assesses changes in butterfly abundance across a network of sites, by a combination of weekly 'transect counts' and single visit 'timed' counts.
|Site Name||Established||UK BMS Link|
|Ashlawn Cutting||2016 (7 years)|
|Baddesley Spoilheap||2006 (17 years)|
|Binswood Allotments||2014 (9 years)|
|Bishops Heaps||1999 (24 years)|
|Blue Lias Meadows||2016 (7 years)|
|Brandon Marsh||2012 (11 years)|
|Brandon Wood||2012 (11 years)|
|Bubbenhall Meadow||2008 (15 years)|
|Bubbenhall Wood||2008 (15 years)|
|Charlecote Gardens||2016 (7 years)|
|Charlecote Place's and Hill Park||2016 (7 years)|
|Charlecote West Park||2016 (7 years)|
|Coombe Abbey Country Park Meadows||2012 (11 years)|
|Coombe Abbey Country Park Poolside||2012 (11 years)|
|Coombe Abbey Country Park Woodland||2012 (11 years)|
|Deans Green||2010 (13 years)|
|Draycote Water||2011 (12 years)|
|Drayote Water Treatment||2012 (11 years)|
|Fenny Compton Tunnels||2013 (10 years)|
|Fenny Compton Tunnels Copse||2016 (7 years)|
|Foundry Wood||2017 (6 years)|
|Hampton Wood||2011 (12 years)|
|Harbury Spoilbank||2006 (17 years)|
|Harbury Spoilbank North||2008 (15 years)|
|Hartshill Hayes||2009 (14 years)|
|Haseley Gathering Grounds||2016 (7 years)|
|Haseley Mill||2016 (7 years)|
|Hay Wood||2017 (6 years)|
|Hearsall Common 04||2004 (19 years)|
|Leam Valley Reserve||2006 (17 years)|
|Long Itchington (SUSTRANS)||2012 (11 years)|
|Malpass||2017 (6 years)|
|Newton Cutting||2016 (7 years)|
|Old Nun Wood||2015 (8 years)|
|Oversley Wood||2000 (23 years)|
|RSPB Middleton Lakes 1||2009 (14 years)|
|RSPB Middleton Lakes 2||2009 (14 years)|
|Ryton Meadows||1990 (33 years)|
|Ryton Meadows (Species)||2005 (18 years)|
|Ryton Meadows Bund (Species)||2008 (15 years)|
|Ryton Pools Country Park||2011 (12 years)|
|Ryton Wood and Pool||1990 (33 years)|
|Ryton Wood and Pool Purple Hairstreak Walk||1990 (33 years)|
|Ryton Wood (Purple Emperor)||2005 (18 years)|
|Ryton Wood East||1995 (28 years)|
|Ryton Wood North||1993 (30 years)|
|Ryton Wood North Purple Hairstreak Walk||1992 (31 years)|
|Ryton Wood West||1998 (25 years)|
|Snitterfield Bushes||1999 (24 years)|
|Southam Bypass North||2016 (7 years)|
|Southam Old Quarry||2012 (11 years)|
|Stockton||2008 (15 years)|
|Stockton Cutting||2017 (6 years)|
|Stockton Locks||2016 (7 years)|
|Sun Rising Natural Burial Ground||2017 (6 years)|
|Swift Valley Country Park||2013 (10 years)|
|Tasker's Meadow||2014 (9 years)|
|Ufton Fields Nature Reserve||2011 (12 years)|
|Wappenbury Wood||2008 (15 years)|
|Welches Meadow||2010 (13 years)|
|Weston and Waverley (Purple Emperor)||2016 (7 years)|
|Weston and Waverley Woods||2013 (10 years)|
|Wolvey Meadows||2017 (6 years)|
|Wolvey Old Cricket Field||2017 (6 years)|
There is growing acknowledgement of the importance of biodiversity in the wider countryside. The focus on historically rich locations for butterflies has led to a lack of monitoring in vast areas of the wider countryside. These areas include farmland, plantation woodland, uplands and urban green spaces.
The UK Butterfly Monitoring Scheme, run by Butterfly Conservation (BC), the Centre for Ecology and Hydrology (CEH) and the British Trust for Ornithology (BTO), developed the Wider Countryside Butterfly Survey (WCBS) to measure the changing abundance of widespread species in the general countryside.
With 70% of the UK's land in agricultural use. It is essential that butterflies in these areas are monitored to ensure the health our countryside.
A minimum of two visits to a randomly selected square between May and August counting butterflies along two 1km survey lines running roughly north-south through the square. The survey is co-ordinated by Butterfly Conservation with the help of each branch.
If you would like to take part, please contact Keith Warmington for more information.
In addition to the transects, we also carry out Timed Count Monitoring of key species at some sites that are only visited once or twice a year.
Use our online recording system to submit your observations of butterflies and day-flying moths.START
To search for records by a particular recorder or location, please use the search fields below.
Our Annual Report includes butterfly and moth survey data collected by hundreds of volunteers and enthusiasts during the previous year. Published spring 2019.MORE