© Steve Marshall / Wild Future

Welcome to the Friends of Stocker's Lake Website

This website is owned and maintained by Friends of Stocker’s Lake (FoSL), a registered charity. FoSL exists to :

  1. - conserve, safeguard and enhance Stocker's Lake as a Local Nature Reserve
  2. - help and extend the scope of the work of the warden at Stocker's Lake
  3. - foster public support for and appreciation of Stocker's Lake as a local nature reserve.

Stocker's Lake, near Rickmansworth just inside the M25, is bordered on one side by the river Colne and on the other by the Grand Union canal. It is a place of great beauty and it supports a huge variety of wildlife, especially birds, particularly winter wildfowl. It is owned by Affinity Water and managed by Herts & Middlesex Wildlife Trust, actively supported by local people who are the Friends of Stocker’s Lake.

Within this website you will find details of organised walks and other events on the reserve, news of interesting recent sightings of birds, details of how to join FoSL for a mere £5 per year, and much more.


Heron and Egret Watch - 29 03 20

1pm to 4pm: Join us to view nesting Grey Herons and Little Egrets. Meet on the causeway for directions to the viewing location which will be dependent on where the birds are nesting. 

Children under 16 must be accompanied;  Please wear appropriate footwear and clothing. Please bring your own sting or bite medication.

Work Party - 05 04 20

10am to 12:30pm: Meet 9.55 at the Fisherman's car park - click here for a map - unless otherwise directed. If you plan to come it would be helpful if you could let This email address is being protected from spambots. You need JavaScript enabled to view it. know please on 07428 790460.

HMWT Wildlife Spotting for Families - 10 04 20

10.30am to 12.00pm

Bring the family to this event and learn about the wildlife found at Stocker's Lake. To book, or for further details, please call 01727 858901 or visit www.hertswildlifetrust.org.uk/events

Annual General Meeting - 16 04 20

Our 2020 AGM will be held at 7.30pm on Thursday April 16th at the Baptist Church Hall, Field Way, Mill End. See our Annual General Meeting page for further details. 

Spring Chorus and Warbler Walk - 03 05 20

8:30am: Meet on the causeway between Stocker's Lake and Bury Lake. A morning walk to hear and identify newly arrived spring migrant birds.

Length of walk = 1.5 miles with frequent stops. Expected duration = 2.5 hours. Children under 16 must be accompanied;  Please wear appropriate footwear and clothing. Please bring your own sting or bite medication.

Recruitment Drive - 16 & 17 05 20

A recruitment drive on the reserve to coincide with the Rickmansworth Festival. Come do a shift on our stall and help recruit new members.  Please let This email address is being protected from spambots. You need JavaScript enabled to view it. know if you are available to help.

All events ...

This is now full nesting season for our herons and once again our offshore cameras are picking up some great video footage and still pictures.

On Saturday 7th December local members of the Jain gathered with FoSL representatives to plant an English Oak tree to commemorate the 150th birth anniversary of Mahatma Gandhi.

At the Rural Living Awards evening on October 18th at County Hall, Hertford, Three Rivers groups did very well with Friends of Stocker’s Lake winning the top and prestigious Chairman’s Award.

2019 was a good year for butterflies around the lake with a total of 826 butterflies counted through the summer. This is the second highest count since the current surveys started in 2012, and is comparable to that of 2017. The count was 26% down on 2018 but due to weather conditions 2018 was an exceptional year. 

Following a chance meeting Martin Ketcher of Herts & Middx Wildlife Trust (HMWT) asked FoSL to help encourage the return of the delightful water vole to the River Colne that borders one side of our reserve. The water vole is of course “Ratty” in the “Wind in the Willows”. Water voles were seen on our reserve in the 1990s but when mink arrived they disappeared.

Recent Sightings

13th - 2 Oystercatcher (on island from Tern hide), 13 Goldeneye (4 male)

11th - 9 Goldeneye (4 male), 8 Egyptian Goose

31st- 15 Goldeneye (5 male) and on Stocker's Farm: 60+ Fieldfare, 30 Siskin

29th - 20+ Wigeon 

28th - Peregrine, 4 Goldeneye, 4 Wigeon

21st - 8 Goldeneye (4 male)

12th and 13th - on adjacent Bury Lake - a male Wood Duck

2nd - 16 Goldeneye (6 male) 

28th - Barnacle Goose, 6+ Goldeneye (3 males), 11 Red-Crested Pochard (8 males), Sparrowhawk

24th - Kingfisher, 17 Goldeneye (5 male)

19th - 14 Goldeneye (6 male), 12 Red-crested Pochard (10 male)

13th - 11 Goldeneye (4 male)

5th - 11 Goldeneye (5 male), 5 Wigeon, 18 Lapwing

4th - 5 Goldeneye, 14 Red-Crested Pochard

2nd  - 2 Egyptian Goose, 4 Goldeneye, Red-Crested Pochard

Previous sightings and reports ...