Category Archives: Events

4th November: Hobson’s Brook

The title of the talk on 4th November is Biodiversity of the Hobson’s Brook Corridor

Dr Steve Boreham will talk about the biodiversity of the area surrounding Hobson’s Brook, a chalk stream and historic water course that rises at Nine Wells springs. As a geologist, ecologist and Trustee of Hobson’s Conduit Trust, he will also discuss conservation initiatives and threats to this important green corridor that leads in to the heart of Cambridge City.

The talk is ONLINE via Zoom and will start punctually at 7:30 p.m.

Members and those on the mailing list will be emailed login details nearer the time. To be added the mailing list, email webmaster [at]

To become a member, which brings further benefits, see the website:

28th October: A Choice

Jonathan Shanklin, the speaker for our next online talk, on Thursday 28th October, is well-known both to members of CNHS, being a past President and having been involved in the Society for many years. He is also known more widely as one of the team who discovered the ozone hole in 1985.

He is offering the audience a choice of titles:

  • Marvel at the Moon
  • The Flora of Antarctica (and South Georgia & Falklands)
  • The Natural History of Comets
  • An astronomer in Antarctica

Do join us for this talk on Zoom. Even if he does not give the talk you would choose, it will be informative and entertaining. He is an extremely knowledgeable speaker and able to speak authoritatively on all these subjects. He adds that “all will contrive to include mention of climate change and the ozone hole”.

Members and those on the mailing list will be emailed login details before the meeting.
To be added the mailing list for events email webmaster [at]
To become a member, which brings further benefits, see the website:

Outdoor events

There are three outdoor events in the CNHS autumn programme.

Saturday 16th October: Fungal foray at the Botanic Garden Booking essential and limited to 15 participants. To book, please email Jonathan Shanklin <>

Sunday 17th October: Field study at Trumpington Meadows. This will focus on fungi.

Sunday 28th November: Field study at Trumpington Meadows. This will start at 11 a.m. to look at bryophytes (mosses and liverworts).

Members and those on the mailing list will be emailed details.

Autumn talks

The future of nature conservation and the Wildlife Trusts’ 30:30:30 vision

The first talk in the autumn programme will be on Thursday 7th October at 7:30 p.m. and, like the spring talks, it will be held via Zoom.

We are delighted that Brian Eversham, Chief Executive of The Wildlife Trust for Bedfordshire, Cambridgeshire and Northamptonshire, will give a talk in which he will outline new approaches to conservation and the aim of increasing the area of land protected for nature by 2030.

Photo shows The Great Fen © Wildlife Trust for Bedfordshire, Cambridgeshire and Northamptonshire

Members and those on the mailing list will be emailed login details nearer the time.
To be added the mailing list for events email webmaster [at]
To become a member, which brings further benefits, see the website:

Sewage Saturday

On Saturday 4th Sept from 11am, by the footbridge on Jesus
Green, Little Blue Dot will be floating a number of giant model poos
down the Cam to raise awareness of river pollution in Cambridge and across England. The idea is to have an event that’s funny, shocking and with a serious underlying message. See Twitter for updates: @lil_blue_dot

You are invited to take part:

1) Come and take photos and put them on social media
2) Hand out leaflets to passers-by
3) Join the procession along the river bank to accompany the floating sewage – music, dress-up, bring signs

The event is to highlight how bad river pollution is. Every single river in England is polluted beyond legal limits.

To find out more, including what you can do about this problem, go to:
Friends of the Cam
River Action UK
Watch the film by George Monbiot at

Trumpington Meadows field study

With the nights beginning to draw in our visits to Trumpington Meadows return to Sunday afternoons. Our next field studies visit is on Sunday, August 22, meeting at 2pm at the Byron’s Pool car park, by the cycle stands TL438548 CB2 9LJ.

It is an easy cycle ride from Cambridge: Trumpington Road, then Church Lane and Grantchester Road. If you cross the river you’ve gone too far. The Cyclestreets route planner shows the distance as three miles from Cambridge Market and can be used to plan other routes.

The field studies visits aim to record the flora and fauna of the area and introduce participants to it. Although the flowering season is drawing to an end, there will still be many species in flower and if the weather is fine we might see butterflies and other insects. The going is fairly easy and often on paths. All welcome. Wet weather is currently forecast, but that may change in the coming days.

Wandlebury visit

On Sunday August 1 Cambridge Natural History Society will be visiting visit Wandlebury Country Park. The aim of this visit is to record in two new meadows that have been acquired by Cambridge Past, Present & Future. The main focus will be on botanical recording, but we will also record other flora and fauna that we encounter. The meeting is suitable for beginners as there will be help with identification.

All welcome, but if possible let Jonathan Shanklin (jdsh [AT] know that you plan to come. Meet at the cycle stands at the Wandlebury car-park (TL492532) at 2 pm. There is a good cycle route from Cambridge, though there is a hill to climb! That’s because Wandlebury is 74 m above sea level (243 ft) compared to 6 m (20 ft) for Cambridge.

For cycle routes see – this shows that the route from the City Centre (junction Sidney Street and Petty Cury) to Wandlebury is 4 1/4 miles (almost 7 km) in an almost straight line and would take 40 minutes.

Trumpington Meadows Field Studies

Our next field studies visit to Trumpington Meadows takes place on Thursday, July 22, meeting at 6:30pm.  These visits aim to record the flora and some of the fauna of Trumpington Meadows, and introduce beginners to our local wildlife. 

Meet at the entrance opposite Addenbrooke’s Road on the Hauxton Road out of Cambridge TL441539 – see

All welcome – it is helpful if you can let Jonathan Shanklin (jdsh [AT] know if you plan to come.


The AGM takes place on Thursday, 17 June at 7:30pm by Zoom.

As well as the formal business of electing the Officers and Council there will be reports from the Treasurer, Membership Secretary and Programme Secretary and on the Conversazione and Website. In addition the President will present his illustrated review of the year.

CNHS members have been sent the Zoom link.

If you wish to join the Society, please do so and you will be sent the link.

Trumpington Meadows 20th May

We seem to be progressing smoothly out of lockdown, so our next field studies visit to Trumpington Meadows on Thursday, May 20, should go ahead, though there is a risk of April showers.  This is an evening visit, starting at 6:30pm.  Although we should be able to meet in a large group, we will then split into smaller groups (depending on numbers) for the walk around.  In order to help plan, we’d still like you to book by emailing Jonathan Shanklin, but we should be able to accommodate everyone who does.  Those booking will be told where to meet.

The field studies visits aim to make a regular audit of the natural history of the chosen sites and to introduce members to them and their wildlife.  They are suitable for all, though you come at your own risk.  Please follow the guidance given by the BSBI for participants on field meetings, which you can find at  The CNHS events are all suitable for beginners, with an element of tuition, and are “Green” rated.