Welcome to the Hertfordshire & Middlesex branch of Butterfly Conservation
Butterfly Conservation is a registered charity dedicated to the conservation of butterflies and moths
Click on the above image for information on which moths are present including their abundance & distribution
For the latest moth
sightings also see the Herts & Middx Moth facebook page
Sat 26 Jun 10:00 - 11:30 am Holland Park, Ilchester Place - Guided butterfly walk and examining the
contents of the previous night's moth trap with the Holland Park Ecology Centre led by Andrew Wood. Booking required. Details
Sun 27 Jun 9:30 am - 1:00 pm Horsenden Hill - Guided walk for White-letter Hairstreak and other summer
butterflies led by David Howdon. Also inspection of a moth trap run on the previous night. No advance booking required but may be subject to change.
Sat 3 Jul 10:30 am - 12:00 pm Fryent Country Park - A short guided walk for butterflies led by Leslie
Williams. Booking required. Details
Sun 4 Jul 2:00 - 4:00 pm Cassiobury Park and Whippendell Woods - Guided walk for summer
butterflies with the Friends of Cassiobury Park and Watford Borough Council. No advance booking required but may be subject to change.
For the programme of events for walks please click here
|Latest news and information
Bike For Butterflies Challenge. Simon Saville from the Surrey & SW London Branch is setting off on a gruelling 1,200 mile cycle
ride from Land's End to John O'Groats on Tuesday 22 June to raise £15,000 for Butterfly Conservation. Donations can be made
For the Big City Butterflies launch on Tuesday 1 June, find more about fun ways to
join in. Join Ele Johnstone,
our new staff member, and play hide and seek with butterflies in London parks
Our major new project Big City Butterflies, launches on Tuesday 1 June. Watch as Kate Merry provides an insight into how we will be promoting butterflies and moths in inner London
Exciting news from Gerry Rawcliffe who saw a Long-tailed Blue at Alexandra Palace today (18 May)
Excellent and informative talk by Simon Saville on the Climate change impacts on butterflies and moths
can be viewed here
The winter online Zoom YouTube recordings can now be viewed
Many Painted Ladies have been reported in the south of England including some in our area in the last few days. 12 May
Anna Guerin has set up a blog for butterflies observed in London. Please read
Nick Murray saw a Duke of Burgundy at Aldbury Nowers on 2 May, a species not reported here since 1998 and nowhere in our area since 2009
Large Tortoiseshell seen in Sawbridgeworth on 1 April
Winners of this year's Photo Competition can be found
*** - Please read the latest Tick Guidance ***
The Big City Butterflies project has secured funding - please click
A new report shows that larger moths in Britain have declined by a third in the last 50 years. Please read the
statement and the full report from Butterfly
Please see the presentation by Steve Bolton about the Brilliant Butterflies Project
regarding chalk grassland management for butterflies like the Small Blue. Click
Beat the lockdown blues by helping us find blackthorn whilst on your daily exercise walk - our new branch project. Click
Please check the Can you help? table for the latest updates,
including transects to be walked in 2021
An excellent film of the Brown Hairstreaks in Surrey produced in December 2020 - click on the image below
Information on the Big City Butterflies project can be found
A summary of Malcolm Hull's article on hibernating butterflies appears in the
Unless you have already done so, please do not forget to send in your records for the year to
Please listen to Malcolm Hull's interview with BBC Radio Jersey (30 October) on hibernating butterflies
IMPORTANT - Please read the latest coronavirus update from Butterfly Conservation
The results of the Big Butterfly Count 2020 can be found
See Andrew Wood's latest Question and Answer session at Holland Park
Read the latest blog from Butterfly Conservation on Malcolm Hull's
'Where have all the Small Tortoiseshells gone'
Listen to Malcolm Hull on Radio Verulam's
podcast on the Big Butterfly Count
Attractive 44-page full colour booklet on the butterflies of Heartwood is available for purchase (cash only).
Details on the image below. Click to expand
Millhoppers Pasture - the branch's only specialist butterfly reserve - new
leaflet published to mark the relaunch of Butterfly
Conservations local reserve: open to visitors now all welcome 24/7
David Howdon's virtual events on 27 June have been filmed and can be watched on his
Periscope page: Butterfly walk at Horsenden Hill and
moths from moth-trap ran nearby the previous night
Many Four-spotted moths reported in Cambridgeshire last week (as of 6 June)
so look out for it in grassy places where Field Bindweed is present
Good news for UKBMS recorders - please read the latest from Butterfly Conservation
Some splendid video clips of life-cycles and behaviour of some of our butterflies have been filmed - well worth watching.
View the Videos webpage. Enjoy!
Members' Day. To see photos and vote in the photo competition click
here and for presentations and members' slides click
Photo Competition winners announced - see who won in each category here. Well done to the winners and thank you to all who took part. Meanwhile you can read our
and Minutes of last years meeting.
Small Blue project at Greenwood Park - please read
latest report (as of April 2020).
Large Tortoiseshell reported in Cambridgeshire on 15 April
Read the latest WCBS newsletter here.
It may now be the transect season and due to the current restrictions why not take part in the Garden Butterfly Survey
2019 UKBMS Results: 2019 was the best year since 1997 for butterflies according to the UKBMS. The results
can be found here. Click
here for summary of the changes.
The latest Small Blue report for our branch can be read
Read Malcolm Hulls's article on hibernating Small Tortoiseshells here
Shedding new light on hibernating tactics. See Malcolm Hull's piece in the Guardian on
6 species already reported in the first 10 days of January
Minor design changes on website including 'Home' page, e.g. links to external sites now accessible in horizontal menu bar above
Brimstone flying at Berkhamsted Common on 30 December. Latest ever?
17 December - Butterfly Conservation still receiving reports of Large White caterpillars in gardens from the south coast of England
- have you seen any in your garden?
Small White seen in Lewisham on 25 November
Two projects on BC website -
Big City Butterflies and
Latest report from the UKBMS for 2018 - please read
Small Blue project at Greenwood Park - construction completed - please read
progress report (latest update 28 Sep).
Have a look at the display boards at the
Second brood White Admirals seen on 22 Sep in Suffolk. Maybe worth having a look in established
sites in the next week or two
Results from the year's
Big Butterfly Count.
Breakdown count for each county including the top 5 butterflies
Long-tailed Blues seen in southern coastal counties between Cornwall and Suffolk -
please read Press Release from Butterfly Conservation. One seen in Wanstead, E London on 16 September
Adonis Blue at Therfield Heath and Queen of Spain Fritillary at Patmore Heath on 20 August - significant finds.
The Adonis Blue might be found at other 'Chalkhill Blue' sites in our branch area, for example, Hexton Chalk Pit so worth visiting these if
you can. It is probable that an unauthorised release of Adonis Blue took place at Therfield Heath so if
anyone knows how they might have got there please give Andrew Wood or Malcolm Hull a call - all calls treated in strict confidence
Painted Lady influx this year. For sightings already reported in 2019 go to the
Migrant Watch page on the Butterfly Conservation website
Brown Hairstreak reported from Surrey (12 July?), so we should find it in our area
very soon. Start looking on hedgerows with plenty of blackthorn and nearby ash/oak trees, preferably near woodland. Contact
Andrew Wood for best sites. For species account click
here. Several seen on 28 July at the Stafford Open Space in Hillingdon - see sightings page
Advice on controlling infestation of Box Tree caterpillars, please read UPDATED BC note
The Living Churchyards project aims to encourage wildlife in their churchyards. For more details please read
here. A workshop day on 13 July at
Potton where Andrew Wood will be present. Booking is required for this event
Reports of Green Hairstreak and Small Blue on unexpected sites this year so continue looking out for them in
grassland areas even where there is no Kidney Vetch (for Small Blue)
Can you help record hibernating Small Tortoiseshells? Read Malcolm's article. There is a link to this article in the current newsletter. If you encounter connection problems let
Are there any sites in our branch area you have never been to? Check out the map on the sites page. Many new sites have been added. The map itself can be expanded or loaded under a new tab in your browser
Butterflies bounced back in 2018 according to a study by the UKBMS
Large Tortoiseshell reported in Kent and Lincolnshire in last week of March and one seen in central Essex on 1
April. One seen at Incombe Hole, Ivinghoe Beacon on 23 April. At least 600 in the Netherlands this spring - unprecedented, at
least in the last 50 years or so and first proof of reproduction since 1995 - see Chris van Swaay's tweet.
At least 85 people attended the branch AGM and members' meeting on 23 March - photos below © John Murray
Third Camberwell Beauty sighting in north London this year - at Muswell Hill on 24 March
Over the next 12 months Butterfly Conservation are launching a 'Moths Matter' campaign to encourage people to become
more interested in moths - see the web page here
The Garden Butterfly Survey 2018 Results summary are out. Click
here for details
Which butterfly was top in 2018 according to the Wider Countryside Butterfly Survey? Find out more in the latest
Brown Hairstreak eggs found further north in Middlesex
Help the new team at Millhoppers - work parties will
normally be held every first Sunday of the month - next date 5 January
Holly Blue seen in Islington on 23 December- see
Katherine Pogson's tweet
More Brown Hairstreak egg finds in Middlesex - see
A very successful Brown Hairstreak egg-hunting day on 9 Dec - see
|© John Dobson
Advice on two moth species: for controlling infestation of Box Tree caterpillars, please read BC note
here. Health warnings on toxic Oak Processionary
Moth caterpillars - please read.
Initial National Lottery support for London-based project Big City Butterflies. Please read more
here including a job vacancy
9 Herdwick sheep now at the Millhoppers Reserve
Big Butterfly Count 2018 results - Small Tortoiseshell crashes -
Brown Hairstreak reported from the Borough of Hillingdon on 2 September - see
sightings page and
Andrew Middleton's video clips of the butterfly in the area on 6
Which butterfly was the most abundant in our gardens in 2017? Find out from Butterfly Conservation's
Garden Butterfly Survey
Generally in the UK, it was the warmest May on record. UK maps for climate change anomalies shown
Chequered Skippers flying at Rockingham Forest.
Also see tweet on Back From the Brink
Can you prepare a square metre in your garden to provide a refuge for our butterflies and other insects?
Please read Alan Titchmarch's Press Release
Butterfly Conservation report a below average year for
butterflies in 2017. See here for details and summary of results
Read about the 50th anniversary Conservation Day at Millhoppers NR here.
For Press Release from Butterfly Conservation click here.
Congratulations to Andrew Steele on his Woodlands Trust Award - Acorn Award
Duke of Burgundy
Dark Green Fritillary
More on sightings page
The Hertfordshire & Middlesex Branch has over 1000 members and covers the administrative county of Hertfordshire and the Watsonian Vice-county of Middlesex (VC21).
The London Boroughs included within the Branch area are Barnet, Brent, Camden, City of London, City of Westminster, Ealing, Enfield, Hackney, Hammersmith & Fulham, Haringey, Harrow, Hillingdon, Hounslow, Islington, Kensington & Chelsea, Richmond (north of the Thames), Tower Hamlets and the Surrey District Council of Spelthorne.
Download a copy of our 'Welcome to the Hertfordshire & Middlesex Branch of Butterfly Conservation' leaflet for more information
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