Herts and Middlesex Wildlife Trust explained

Herts and Middlesex Wildlife Trust
Full Name:Hertfordshire and Middlesex Wildlife Trust Limited
Logo Alt:The Wildlife Trusts badger logo
Type:Conservation charity
Registration Id:Registered charity 239863
Headquarters:St Albans, Hertfordshire
Region:Hertfordshire, parts of North London
Leader Title:Chief Executive
Leader Name:Lesley Davies
Main Organ:Local Wildlife Sites Newsletter
Parent Organization:The Wildlife Trusts
Formerly:Hertfordshire & Middlesex Trust for Nature Conservation

Herts and Middlesex Wildlife Trust manages over 40 nature reserves covering nearly 810ha north of London, in Hertfordshire and the historic county of Middlesex, part of which is divided between the London boroughs of Barnet, Enfield, Harrow and Hillingdon. It has over 21,000 members, and is one of 46 Wildlife Trusts across the UK.[1] [2] It is a Registered Charity, with its Registered Office in St Albans, and had an income in the year to 31 March 2014 of over £1.5 million.[3]

The trust's activities include managing nature reserves, advising landowners on how to manage their land for wildlife, commenting on planning applications, advising planning authorities and campaigning to protect wildlife. The trust also encourages people to be active volunteers helping to maintain nature reserves.[4]

The first preparatory meeting of what was to become the trust was held on 16 November 1963, and the Hertfordshire & Middlesex Trust for Nature Conservation was incorporated on 9 October 1964. By 1970 it had twenty reserves and in the same year it took over management of its first Site of Special Scientific Interest (SSSI), Blagrove Common. In 1987 it changed its name to the Herts and Middlesex Wildlife Trust. In 2007 it purchased Amwell Quarry, and started restoration which has now made the site internationally important for its wetland birds.[5]

Two of the trust's nature reserves are Ramsar sites, internationally important wetland reserves; fifteen are SSSIs, and five are Local Nature Reserves. The first site was Fox Covert, donated by Mr Fordham of Letchworth on the trust's foundation in 1964.[5] The largest is King's Meads, at 96ha; this is water meadows where 265 wildflower species have been recorded, and it is an important site for overwintering European stonechats. The smallest is Alpine Meadow at 0.8 hectares, which has been designated an SSSI as an example of unimproved chalk grassland.

Nature reserves

Key

Designations
Access
SitePhotographArea LocationPublic accessDesignationsDescription
Aldbury Nowers[6] 19.7haTring
51.8125°N -0.6197°W
YESSSSIAccording to Natural England this site "contains one of the best remaining areas of chalk downland in the county as well as one of the finest examples of ancient 'beech hanger' woodland".[7]
Alpine Meadow[8] 0.8haBerkhamsted
51.7831°N -0.567°W
YESSSSIThis is a steeply sloping area of meadow and woodland, and it has been designated an SSSI as a rare example of unimproved chalk grassland. Butterflies include marbled white and the rare Duke of Burgundy.[9]
Amwell Quarry[10] 40.1haGreat Amwell
51.7965°N -0.0053°W
YESSSSI[11] Ramsar SPAThis former gravel pit is of international importance for wintering wildfowl. It also has many species of breeding birds, damselflies and dragonflies, including the hairy dragonfly, red-eyed damselfly and southern hawker.
Ashwell Quarry and Quarry Springs[12] 3haAshwell
52.0402°N -0.1738°W
PORIGS[13] Plants in the quarry include pyramidal orchid, clustered bellflower and glaucous sedge, and there are rare mosses in shaded hollows. Quarry Springs has rare wildlife such as flatworms which need water which is clean and at a constant temperature around 10 °C.[14]
Astonbury Wood[15] 54haStevenage
51.8747°N -0.1478°W
YESThe site is ancient woodland.
Balls Wood[16] 58.5haHertford Heath
51.778°N -0.047°W
YESThe site has areas of hornbeam coppice and mixed woodland with wide grassy paths, which have many butterflies in the spring. Great spotted woodpeckers and sparrowhawks breed on the site.
Blagrove Common[17] 3.9haSandon
51.9863°N -0.0668°W
YESSSSI[18] This is marshy grassland on poorly draining clay, which is now a scarce habitat in the county. The rich flora include several species of orchids, cuckoo flowers, and marsh marigolds.[19]
Broadwater Lake[20] 19.4haHarefield
51.5852°N -0.4924°W
YESSSSIThe reserve includes Korda Lake, Long Pond, the River Colne and the western side of Broadwater Lake. It is part of the Mid Colne Valley SSSI, which has nationally important bird colonies including great crested grebes, cormorants and gadwalls.
Cassiobury Park[21] 24.6haWatford
51.6635°N -0.4262°W
YESLNRThe nature reserve is a corner of the park. It has marshland and open pools, together with areas of wet woodland and pasture. These provide breeding sites and food for many bird species.
Danemead[22] 5.6haHoddesdon
51.7523°N -0.0507°W
YESSSSIThis is part of the Wormley-Hoddesdonpark Wood North SSSI. It has areas of wet grassland, scrub and hornbeam woodland, together with a stream. Wild flowers include meadowsweet and devil's-bit scabious.
Fir and Pond Woods[23] 29haPotters Bar
51.6955°N -0.153°W
YESFir Wood to the south is connected by a short footpath to the large Pond Wood to the north.[24] The woods are a remnant of the ancient Enfield Chase, and they have woodland, meadows and wetlands, and diverse bird life. Turkey Brook passes a meadow at the southern end of Pond Wood.
Fox Covert[25] 2.9haRoyston
52.0401°N -0.0557°W
YESThe site is mature beech woodland, planted in the nineteenth century, and ground flora includes many white helleborine orchids. It has deer and many species of birds.
Frogmore Meadow[26] 3.3haChenies
51.6791°N -0.5225°W
YESSSSIThis SSSI has marshy areas and fens next to the River Chess, damp grassland and drier, more acidic areas. The river bank has water voles, and damp areas are dominated by meadow foxtail and Yorkshire fog.[27]
Gobions Wood[28] 36haBrookmans Park
51.7213°N -0.1925°W
YESThe site is mainly woodland, but additional habitats are grassland, hedges and ponds. 558 species of fungi have been found, two of which have not been recorded previously in Britain, and over 100 which are scarce in Hertfordshire. Birds include blackcaps, chiffchaffs and nuthatches.
Hawkins Wood[29] 10haTherfield
51.9978°N -0.0517°W
YESThe wood is thought to be named after a John Hawkins who is mentioned in documents dated 1676. It is divided by medieval banks and ditches into north, south and central sections. It has woods, fields and hedges, and birds include bullfinch, linnet and yellowhammer. There are also brown hares and deer.
Hertford Heath[30] 28.3haHertford Heath
51.78°N -0.0423°W
YESSSSIThis site is an example of heathland, a threatened habitat in southern England. It is dominated by heather, and there are grass snakes and slowworms. Sphagnum mosses and creeping willow are found in wetter areas.[31]
Hexton Chalk Pit[32] 1.9haHexton
51.957°N -0.3897°W
YESThis former chalk quarry is grassland with steep slopes and many chalk-loving plants such as horseshoe vetch, yellow-wort and milkwort. There are five species of orchid and a large colony of chalkhill blue butterflies. The site has extensive views over the countryside.
Hilfield Park Reservoir[33] 76.3haBushey
51.651°N -0.336°W
WTOLNRThis large reservoir is of national importance for pochards, tufted ducks and common tern. The margins have marshy areas with many breeding birds and marsh plants, such as reedmace and reed canarygrass.[34] [35]
Hunsdon and Eastwick Meads[36] 28haHarlow
51.7758°N 0.0488°W
YESSSSIThis SSSI is unimproved grassland which is subject to flooding in winter. It is one of the last areas in the region to be managed by the old Lammas method of hay-making followed by winter grazing.[37]
King's Meads[38] 96haWare
51.805°N -0.044°W
YESThe site is water meadows which are subject to flooding in winter. It has large populations of water birds, and is an important site for overwintering stonechats. 119 bird species and 265 wildflower species have been recorded.
Lemsford Springs[39] 4haLemsford
51.7964°N -0.2287°W
POThe sites has lagoons which are fed by springs, so they never freeze over and provide an important habitat for birds in cold winters. There are two bird hides, and birds which can be seen include water rails, snipe and green sandpipers. There are also water shrews and around fifty species of freshwater snails.
Long Deans[40] 15haNash Mills
51.7312°N -0.4441°W
YESThis reserve is neutral and chalk grassland and woodland, with beech, ash, oak and wild cherry. The grassland has wild flowers, birds and butterflies. Ancient trees have fungi, birds and bats. Birds include common linnet, common bullfinch and song thrush.
Longspring Wood[41] 1.2haKings Langley
51.7201°N -0.4213°W
YESThe main trees in this small wood are oak, ash, wild cherry and hazel, and there is a display of bluebells in the spring. Birds include warblers, finches and tits, and there are mammals such as foxes and badgers.
Old Park Wood[42] 7.7haHarefield
51.6112°N -0.4857°W
YESSSSIThis SSSI is described by Natural England as "one of the most floristically rich ancient woods in Greater London". It is on a steep slope, cut by small valleys, and supports a variety of breeding birds.[43]
Oughtonhead[44] 6.2haHitchin
51.9602°N -0.2994°W
NOHabitats include wet and dry woodland, the bank of the River Oughton, and fen areas. Willow, reed and rush were formerly grown and harvested in the wetter areas, and there was a corn mill at the eastern end. Birds include kingfishers and water rails, and there are mammals such as water shrews.[45]
Patmore Heath[46] 8.4haAlbury
51.9116°N 0.0943°W
YESSSSIMost of this SSSI is dry heathland but, in some areas variations in the underlying clay result in pools and marshy areas, which have a varied wetland flora. The heath is also noted for insects such as the emperor dragonfly.[47]
Purwell Ninesprings[48] 6.4haHitchin
51.9496°N -0.2459°W
YESThere is open water with water voles and birds such as common moorhens, mallards and teals. Other birds include snipe and siskins. The wet ground has plants such as tussock sedge, yellow iris and water forget-me-nots.
Ridlins Mire[49] 1.6haStevenage
51.8845°N -0.1656°W
NFThis wetland site is the result of a spring, which has resulted in the growth of peat over many years into a rare domed structure called a rheotrophic hangmire. The dominant plants are tussock sedge and marsh marigold. There are birds such as long-tailed tits and great tits, and butterflies including large whites and small tortoiseshells.
Rye Meads[50] 32haRye House
51.7746°N 0.0126°W
YESSSSI[51] Ramsar SPAThis is an ancient flood meadow which has a variety of habitats including reedbed, marshy grassland and fen. It is grazed by ponies and water buffalo. Birds include water rails, bitterns and teals, and there are invertebrates such as frogs, toads and grass snakes.
Stanborough Reedmarsh[52] 3.3haWelwyn Garden City
51.7801°N -0.2177°W
YESLNRThe site is wet willow woodland on the bank of the River Lea. It is important for water voles and birds such as reed and sedge warblers.[53] Water figwort, common meadow rue and water chickweed grow along the river bank.
Stocker's Lake[54] 40.4haRickmansworth
51.6346°N -0.485°W
YESLNR[55] This large lake is nationally important for its wintering birds, including goldeneye and smew. It has the largest heronry in Hertfordshire and over sixty bird species have been recorded.
Stocking Springs Wood[56] 1.1haAyot St Lawrence
51.8256°N -0.2551°W
YESThe site is hornbeam woodland, and older trees are gnarled in shape as a result of past coppicing. In spring there are bluebells and wild daffodils, and plants such as wood anemone are indicators that the woodland is ancient.
Tewin Orchard and Hopkyns Wood[57] 4.3haTewin
51.8242°N -0.1608°W
YESTewin Orchard is an eighty-year old fruit orchard which has a number of Hertfordshire apple varieties, including the Hitchin Pippin, which was propagated from the last known tree.[58] The orchard attracts many birds, such as fieldfares and redwings. Hopkyns Wood is dominated by oaks and hornbeams, with ground flora of bluebells and ramsons. It also has a mature badger sett.
Tewinbury[59] 3.6haTewin
51.8242°N -0.1608°W
VOSSSI[60] This SSSI has alluvial meadows and marshes which are rare in lowland Britain. There are areas of swamp and tall fens, with plants including butterbur and angelica. Otters have been observed on the riverbank.
Thorley Wash[61] 13haThorley
51.8421°N 0.1607°W
YESSSSIThis site was formerly a flood pound for the Stort Navigation. Habitats include tall wash grassland, which is now rare, marsh and waterlogged grassland. The varied plant species include reed sweet-grass and meadowsweet.[62]
Tring Reservoirs[63] 55haTring
51.812°N -0.689°W
YESSSSIThe reservoirs are located on the chalk of the Chilterns, and they have clear eutrophic waters with diverse animals and plants. They are an important habitat for birds and invertebrates, including diverse dragonfly species.[64]
Uxbridge Alderglade[65] 2.9haUxbridge
51.5571°N -0.476°W
YESThis former railway embankment is wet woodland of crack willow and alder, with areas of marsh. Plants include birds-foot trefoil and small toadflax, and mammals the rare Brandt's bat, as well as stoats, weasels and moles.
Waterford Heath[66] 35.2haWaterford
51.8185°N -0.0885°W
YESLNRThis is a former quarry, which has grassland, scrub and woodland. Breeding birds include skylarks and willow warblers, and there are reptiles such as slowworms, common lizards and grass snakes.[67]
Willowmead[68] 1.5haHertford
51.7926°N -0.0954°W
YESThe site is on the bank of the River Mimram, and it is wet woodland, mainly of alder trees which are often mature. Water voles and otters have been seen in the river. Water birds include kingfishers, mallards and mandarin ducks. There are breeding birds in the woodland, such as lesser spotted woodpeckers and spotted flycatcher.

Sites formerly managed by the trust

See also

Notes and References

  1. Web site: Home. Herts and Middlesex Wildlife Trust. 19 October 2015. live. https://web.archive.org/web/20151014061502/http://www.hertswildlifetrust.org.uk/. 14 October 2015.
  2. Web site: Find Your local Wildlife Trust. Herts and Middlesex Wildlife Trust. 19 October 2015. dead. https://web.archive.org/web/20150906120403/http://www.hertswildlifetrust.org.uk/who-we-are. 6 September 2015. dmy-all.
  3. Web site: The Hertfordshire and Middlesex Wildlife Trust Limited: 2014 Annual Return and accounts. Charity Commission. 24 October 2015.
  4. Web site: What we do. Herts and Middlesex Wildlife Trust. 19 October 2015. dead. https://web.archive.org/web/20150906123828/http://www.hertswildlifetrust.org.uk/what-we-do. 6 September 2015. dmy-all.
  5. Web site: Timeline. Herts and Middlesex Wildlife Trust. 23 October 2015. dead. https://web.archive.org/web/20151114122838/http://www.hertswildlifetrust.org.uk/who-we-are/our-history. 14 November 2015. dmy-all.
  6. Web site: Aldbury Nowers . Herts and Middlesex Wildlife Trust . 19 April 2015 . live . https://web.archive.org/web/20150905160000/http://www.hertswildlifetrust.org.uk/reserves/aldbury-nowers . 5 September 2015.
  7. Web site: Aldbury Nowers citation. Sites of Special Scientific Interest. Natural England. 25 July 2015. live. https://web.archive.org/web/20150924135319/http://www.sssi.naturalengland.org.uk/citation/citation_photo/1005932.pdf. 24 September 2015.
  8. Web site: Alpine Meadow . Herts and Middlesex Wildlife Trust . 19 April 2015 . dead . https://web.archive.org/web/20141221133546/http://www.hertswildlifetrust.org.uk/reserves/alpine-meadow . 21 December 2014 . dmy-all .
  9. Web site: Alpine Meadow citation. Sites of Special Scientific Interest. Natural England. 21 December 2014. live. https://web.archive.org/web/20160304073344/http://www.sssi.naturalengland.org.uk/citation/citation_photo/1000438.pdf. 4 March 2016.
  10. Web site: Amwell. Herts and Middlesex Wildlife Trust. 19 April 2015. dead. https://web.archive.org/web/20150419222334/http://www.hertswildlifetrust.org.uk/reserves/Amwell. 19 April 2015. dmy-all.
  11. Web site: Amwell Quarry Nature Reserve - (SSSI SPA Ramsar). Royal Society for the Protection of Birds, South East Hertfordshire Local Group. 28 September 2015. live. https://web.archive.org/web/20150929051233/http://www.rspb.org.uk/groups/southeasthertfordshire/places/164191/. 29 September 2015.
  12. Web site: Ashwell Quarry and Quarry Springs. Herts and Middlesex Wildlife Trust. 19 April 2015. dead. https://web.archive.org/web/20150419220353/http://www.hertswildlifetrust.org.uk/reserves/ashwell-quarry-and-quarry-springs. 19 April 2015. dmy-all.
  13. Web site: 28. A Geological Conservation Strategy for Hertfordshire. Hertfordshire RIGS Group. 2003. 24 October 2015. dead. https://web.archive.org/web/20150924021515/http://www.geo-east.org.uk/newsletters/herts/a_geological_strategy_for_hertfordshire2003.pdf. 24 September 2015.
  14. Web site: Ashwell Quarry Nature Reserve. Ashwell Museum. 27 September 2015. live. https://web.archive.org/web/20150928131108/http://www.ashwellmuseum.org.uk/page_id__150.aspx?path=0p2p. 28 September 2015.
  15. Web site: Astonbury Wood . Herts and Middlesex Wildlife Trust . 22 April 2024 . live . https://web.archive.org/web/20230514232048/https://www.hertswildlifetrust.org.uk/nature-reserves/astonbury-wood . 14 May 2023 . dmy-all .
  16. Web site: Balls Wood . Herts and Middlesex Wildlife Trust . 19 April 2015 . dead . https://web.archive.org/web/20150215161032/http://www.hertswildlifetrust.org.uk/reserves/balls-wood . 15 February 2015 . dmy-all .
  17. Web site: Blagrove Common . Herts and Middlesex Wildlife Trust . 19 April 2015 . dead . https://web.archive.org/web/20150418070049/http://www.hertswildlifetrust.org.uk/reserves/blagrove-common . 18 April 2015 . dmy-all .
  18. Web site: Blagrove Common citation . Sites of Special Scientific Interest . Natural England . 12 January 2015 . dead . https://web.archive.org/web/20160304035044/http://www.sssi.naturalengland.org.uk/citation/citation_photo/1000847.pdf . 4 March 2016.
  19. Web site: Blagrove Common citation . Sites of Special Scientific Interest . Natural England . 25 July 2015 . dead . https://web.archive.org/web/20160304035044/http://www.sssi.naturalengland.org.uk/citation/citation_photo/1000847.pdf . 4 March 2016.
  20. Web site: Broadwater Lake. Herts and Middlesex Wildlife Trust. 19 April 2015. dead. https://web.archive.org/web/20150419222309/http://www.hertswildlifetrust.org.uk/reserves/broadwater-lake. 19 April 2015. dmy-all.
  21. Web site: Cassiobury Park LNR . Herts and Middlesex Wildlife Trust . 19 April 2015 . dead . https://web.archive.org/web/20160703092051/http://www.hertswildlifetrust.org.uk/reserves/cassiobury-park-lnr . 3 July 2016 . dmy-all.
  22. Web site: Danemead. Herts and Middlesex Wildlife Trust. 19 April 2015. dead. https://web.archive.org/web/20150216011720/http://www.hertswildlifetrust.org.uk/reserves/danemead. 16 February 2015. dmy-all.
  23. Web site: Fir and Pond Woods . Herts and Middlesex Wildlife Trust . 19 April 2015 . dead . https://web.archive.org/web/20150419222322/http://www.hertswildlifetrust.org.uk/reserves/fir-and-pond-woods . 19 April 2015 . dmy-all .
  24. http://data.wildlifetrusts.org/sites/default/files/files/HMWT_Fir%26Pond_leaflet_WEB.pdf Fir and Pond Woods Nature Reserve leaflet.
  25. Web site: Fox Covert . Herts and Middlesex Wildlife Trust . 19 April 2015 . dead . https://web.archive.org/web/20150418003618/http://www.hertswildlifetrust.org.uk/reserves/fox-covert . 18 April 2015 . dmy-all .
  26. Web site: Frogmore Meadow . Herts and Middlesex Wildlife Trust . 19 April 2015 . live . https://web.archive.org/web/20141211113249/http://www.hertswildlifetrust.org.uk/reserves/frogmore-meadow . 11 December 2014 .
  27. Web site: Frogmore Meadows citation. Sites of Special Scientific Interest. Natural England. 11 December 2014. live. https://web.archive.org/web/20160303223850/http://www.sssi.naturalengland.org.uk/citation/citation_photo/1002647.pdf. 3 March 2016.
  28. Web site: Gobions Wood. Herts and Middlesex Wildlife Trust. 19 April 2015. dead. https://web.archive.org/web/20150420080334/http://www.hertswildlifetrust.org.uk/reserves/gobions-wood. 20 April 2015. dmy-all.
  29. Web site: Hawkins Wood. Herts and Middlesex Wildlife Trust. 19 April 2015. dead. https://web.archive.org/web/20150418063807/http://www.hertswildlifetrust.org.uk/reserves/hawkins-wood. 18 April 2015. dmy-all.
  30. Web site: Hertford Heath. Herts and Middlesex Wildlife Trust. 19 April 2015. dead. https://web.archive.org/web/20150411065406/http://www.hertswildlifetrust.org.uk/reserves/hertford-heath. 11 April 2015. dmy-all.
  31. Web site: Hertford Heath citation . Sites of Special Scientific Interest . Natural England . 25 July 2015 . dead . https://web.archive.org/web/20160304002956/http://www.sssi.naturalengland.org.uk/citation/citation_photo/1001447.pdf . 4 March 2016 .
  32. Web site: Hexton Chalk Pit. Herts and Middlesex Wildlife Trust. 19 April 2015. dead. https://web.archive.org/web/20150404004137/http://www.hertswildlifetrust.org.uk/reserves/hexton-chalk-pit. 4 April 2015. dmy-all.
  33. Web site: Hilfield Park Reservoir. Herts and Middlesex Wildlife Trust. 19 April 2015. dead. https://web.archive.org/web/20150705222612/http://www.hertswildlifetrust.org.uk/reserves/hilfield-park-reservoir. 5 July 2015. dmy-all.
  34. Web site: Hilfield Park Reservoir. Local Nature Reserves. Natural England. 14 March 2013. 29 July 2015. live. https://web.archive.org/web/20150929124719/http://www.lnr.naturalengland.org.uk/Special/lnr/lnr_details.asp?C=0&N=&ID=217. 29 September 2015.
  35. Web site: Hilfield Park Reservoir Wildlife Report 2013. Herts and Middlesex Wildlife Trust and Affinity Water. 29 July 2015. live. https://web.archive.org/web/20150929031018/http://www.hnhs.org/kcfinder/upload/files/Hilfield%20Park%202013.pdf. 29 September 2015.
  36. Web site: Hunsdon and Eastwick Meads. Herts and Middlesex Wildlife Trust. 19 April 2015. dead. https://web.archive.org/web/20160914185534/http://www.hertswildlifetrust.org.uk/reserves/hunsdon-and-eastwick-meads. 14 September 2016. dmy-all.
  37. Web site: Hunsdon Mead citation. Sites of Special Scientific Interest. Natural England. 26 July 2015. live. https://web.archive.org/web/20160304023953/http://www.sssi.naturalengland.org.uk/citation/citation_photo/1003531.pdf. 4 March 2016.
  38. Web site: King's Meads. Herts and Middlesex Wildlife Trust. 19 April 2015. dead. https://web.archive.org/web/20150115064748/http://www.hertswildlifetrust.org.uk/reserves/kings-meads. 15 January 2015. dmy-all.
  39. Web site: Lemsford Springs. Herts and Middlesex Wildlife Trust. 19 April 2015. dead. https://web.archive.org/web/20150406171440/http://www.hertswildlifetrust.org.uk/reserves/lemsford-springs. 6 April 2015. dmy-all.
  40. Web site: Long Deans. Herts and Middlesex Wildlife Trust. 19 April 2015. dead. https://web.archive.org/web/20150427124905/http://www.hertswildlifetrust.org.uk/reserves/long-deans. 27 April 2015. dmy-all.
  41. Web site: Longspring Wood. Herts and Middlesex Wildlife Trust. 19 April 2015. dead. https://web.archive.org/web/20150420063159/http://www.hertswildlifetrust.org.uk/reserves/longspring-wood. 20 April 2015. dmy-all.
  42. Web site: Old Park Wood. Herts and Middlesex Wildlife Trust. 19 April 2015. dead. https://web.archive.org/web/20150411062505/http://www.hertswildlifetrust.org.uk/reserves/old-park-wood. 11 April 2015. dmy-all.
  43. Web site: Old Park Wood citation. Sites of Special Scientific Interest. Natural England. 26 July 2015. live. https://web.archive.org/web/20160304040743/http://www.sssi.naturalengland.org.uk/citation/citation_photo/1003546.pdf. 4 March 2016.
  44. Web site: Oughtonhead. Herts and Middlesex Wildlife Trust. 19 April 2015. dead. https://web.archive.org/web/20150403235357/http://www.hertswildlifetrust.org.uk/reserves/oughtonhead. 3 April 2015. dmy-all.
  45. Web site: Oughtonhead Common, Hitchin. North Hertfordshire District Council. 13 August 2015. live. https://web.archive.org/web/20150924025906/http://www.hertslink.org/cms/content/15488274/16532620/oughtonhead0410.pdf. 24 September 2015.
  46. Web site: Patmore Heath. Herts and Middlesex Wildlife Trust. 19 April 2015. dead. https://web.archive.org/web/20141213020646/http://www.hertswildlifetrust.org.uk/reserves/patmore-heath. 13 December 2014. dmy-all.
  47. Web site: Patmore Heath citation . Sites of Special Scientific Interest . Natural England . 26 July 2015 . dead . https://web.archive.org/web/20160304061712/http://www.sssi.naturalengland.org.uk/citation/citation_photo/1001607.pdf . 4 March 2016.
  48. Web site: Purwell Ninesprings. Herts and Middlesex Wildlife Trust. 19 April 2015. dead. https://web.archive.org/web/20150411064451/http://www.hertswildlifetrust.org.uk/reserves/purwell-ninesprings. 11 April 2015. dmy-all.
  49. Web site: Ridlins Mire. Herts and Middlesex Wildlife Trust. 19 April 2015. dead. https://web.archive.org/web/20150411055445/http://www.hertswildlifetrust.org.uk/reserves/ridlins-mire. 11 April 2015. dmy-all.
  50. Web site: Rye Meads. Herts and Middlesex Wildlife Trust. 19 April 2015. dead. https://web.archive.org/web/20150717020103/http://www.hertswildlifetrust.org.uk/reserves/rye-meads. 17 July 2015. dmy-all.
  51. Web site: Rye Meads (SSSI SPA Ramsar). Royal Society for the Protection of Birds, South East Hertfordshire Local Group. 28 September 2015. live. https://web.archive.org/web/20150929061052/http://www.rspb.org.uk/groups/southeasthertfordshire/places/164189/. 29 September 2015.
  52. Web site: Stanborough Reedmarsh. Herts and Middlesex Wildlife Trust. 19 April 2015. dead. https://web.archive.org/web/20150211054527/http://www.hertswildlifetrust.org.uk/reserves/stanborough-reedmarsh. 11 February 2015. dmy-all.
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