Hands-on day of science and environmental action! Collecting river water samples to test for phosphate levels. No experience needed!  📅 Friday 10th October  https://tinyurl.com/NOSESRestoreHope and 📅 Saturday 18th October 

‼️Chalk stream bird walk- River Misbourne- CANCELLED ‼️ We are very sorry, but we have to cancel this event due to yellow warning for high winds ⚠️⚠️⚠️ We are hoping to run this event in the future. If you have any questions contact us: [email protected]

‼️Chalk stream bird walk- River Misbourne- CANCELLED ‼️ We are very sorry, but we have to cancel this event due to yellow warning for high winds ⚠️⚠️⚠️ We are hoping to run this event in the future. If you have any questions contact us: [email protected]

‼️Chalk stream bird walk- River Misbourne- CANCELLED ‼️ We are very sorry, but we have to cancel this event due to yellow warning for high winds ⚠️⚠️⚠️ We are hoping to run this event in the future. If you have any questions contact us:  [email protected]

Extended Riverfly on the Chess. By comparing data before and after restoration, the monitoring helps understand how well the stream is doing. Extended riverfly provides more detailed data by monitoring 33 species.  We are running a free training day on the 14th October:  https://bit.ly/45cXSN8

Modular River Survey (MoRPh) training day https://bit.ly/466Ujr1 The day will consist of presentations in the morning to teach the MoRPh method and a practice session along a small section of the river.  Only few spaces available!

World River Day! Chalk streams are very rare and fragile ecosystems and they are under threat from sewage and chemical pollution, climate change, habitat loss, drought and water scarcity:

Tomorrow! Don't miss stream dipping, art and craft and guided walk for World Rivers Day with Not Bourne Yesterday  28 September 10:00-16:00 Desborough Recreation Grounds, Fryers Lane, High Wycombe, HP12 3AN

River Ver, St Albans, images taken within 100m of each other. Different ways chalk streams support their local mammalian populations: both important symbols of the role these streams play in our modern society, and should be cherished and celebrated! (Water vole photo: credit Ver Valley Society)

We were excited to join the CaSTCo conference yesterday celebrating the launch of their new roadmap for unified catchment monitoring. https://castco.org/roadmap/ Inspiring collaboration with organisations from across the country, all passionate about the power of citizen science to help our rivers!

‼️ Check out our Events page with new events and training opportunities! ‼️

Not Bourne Yesterday stream dipping, art and craft and guided walk for World Rivers Day 28 September 10:00-16:00 Desborough Recreation Grounds, Fryers Lane, High Wycombe, HP12 3AN

Free Modular River Survey (MoRPh) training day 15 November 10:00 https://bit.ly/466Ujr1 Very limited spaces available, book now to avoid disappointment.

Autumn is here! Today the sun is perpendicular to the equator, and daytime and night time are of approximately equal duration. Autumn is often celebrated with festivals, music, dancing, and communal gatherings. Look around you, do you see nature changing colours already...?

‼️Not long until our Redbourn Common Walk ‼️ Friday 17 October 10:30am  Book your place now!

💚💚 Chesham Green Market 💚💚 We are here today with River Chess Association Come and visit us! Do you want to know more about the river ecology and what we do? We have some invertebrates from the River Chess to display and talk about.

Riverfly monitoring on the Bulbourne Our September survey was wet and quite cold. We still managed to have fun and count several species! If you are interested in riverfly monitoring or helping with other projects, don't hesitate to contact us:  [email protected]

Redbourn Common Walk 💚💚💚 Book your place on this lovely 7km walk from Redbourn and along the River Ver on  Friday 17 October 10:30am  https://bit.ly/4gcUsy0 👣👣👣

Not Bourne Yesterday stream dipping, art and craft and guided walk for World Rivers Day 28 September 10:00-16:00 Desborough Recreation Grounds, Fryers Lane, High Wycombe, HP12 3AN

👣 Redbourn Common Walk 👣 Friday 17 October 10:30am  Book your place on this lovely 7km walk from Redbourn and along the River Ver.

Not Bourne Yesterday stream dipping, art and craft and guided walk for World Rivers Day 28 September 10:00-16:00 Desborough Recreation Grounds, Fryers Lane, High Wycombe, HP12 3AN

Redbourn Common Walk Friday 17 October 10:30am  Join us on this lovely 7km walk from Redbourn and along the River Ver

Chalk Stream Birds walk 🦢🦆 🪹 Don't miss out! Join our walk along the Misbourne. 4 October, 9:30 Book now!

Extended Riverfly Training on the Chess 14 October 2025 Less than a month to book. This free event is for tor those who are already confident in Riverfly monitoring and would like to learn how to identify more species.  https://bit.ly/45cXSN8 See you there!

‼️ One month to the Twilight bat safari on the Misbourne‼️ 27 September 18:30 Don't miss the opportunity to join this event with the CCSP team and WildAmersham where we will be using bat detectors and explore the nocturnal wildlife of the riparian habitat. Families welcome!

🦇 🦇🦇 Twilight bat safari on the Misbourne 27 September 18:30 This is a joined event with the CCSP team and WildAmersham. That evening we will be using bat detectors and also explore the nocturnal wildlife. Everyone welcome! 

Looking for an evening activity? Join us and the @vervalleysoc.bsky.social  for an evening stroll by the Ver in Verulamium Park, St Albans. These rare, crystal-clear rivers support insects that bats love to feast on. Healthy streams = happy bats! 📆 5th September 7.15pm

Chalk Stream Birds walk 🦢🦆 🪹 Join us on this fantastic walk along the Misbourne. 4 October, 9:30 Only few spaces, book now!

Extended Riverfly Training- Autumn 2025 14 October Latimer This free event is for tor those who are already confident in Riverfly monitoring and would like to learn how to identify more species. Book now!

Chalk Stream Birds walk 🦢🦆 🪹 4 October, 9:30 Join us on this fantastic walk along the Misbourne. On the day you'll be guided by two of our best and most enthusiastic birders! This event has limited spaces, so book soon to avoid disappointment!

Looking for an evening activity? Join us and the @vervalleysoc.bsky.social  for an evening stroll by the Ver in Verulamium Park, St Albans. These rare, crystal-clear rivers support insects that bats love to feast on. Healthy streams = happy bats! 📆 5th September 7.15pm

🦢🦆 🪹 Chalk Stream Birds walk Join the CCSP and the CNL team on this fantastic walk along the Misbourne. You'll be guided by two of our best and most enthusiastic birders! This event has limited spaces, so book soon to avoid disappointment!

Twilight bat safari 27 September 18:30 Join the CCSP team and WildAmersham for a wild night on the Misbourne. We'll be taking bat detectors with us and also look for other local nocturnal wildlife. Families welcome!

Riverfly training. If you are interested riverfly monitoring, we organize two events per year. The next one will be in autumn. This event usually sells out quite quickly, book now if you want to get a place. 11 October 9:00-17:00

The CCSP newsletter has just gone out! Contact us if you want to be on our mailing list and know more out what's going on on the Chilterns chalk streams!

The Chilterns Chalk Streams Project has secured £1 million towards the ‘Mending the Misbourne’ programme. Thank you to the many partners who worked with us to develop the R. Misbourne catchment plan. Funding means we can start to put plans into action! @chilternsnl.bsky.social

As we move into late summer the effects of the dry year are beginning to show in the headwaters of chalk streams like the Misbourne here at Missenden Abbey Park.

Extended Riverfly Training 14 October 2025 This free event is for tor those who are already confident in Riverfly monitoring and would like to learn how to identify more species. Book now!

Having a lovely day speaking to visitors about local chalk streams @nationaltrust.org.uk Hughenden Manor today with @notbourneyesterday.bsky.social . We'll be back on Sunday for stream dipping in the Hughenden Stream. www.chilternstreams.org/events/

Extended Riverfly Training  Already confident in the Riverfly method? Join us to learn more about freshwater invertebrate groups! Tuesday 14 October

Many thanks to our volunteers for another thorough #balsambash. Much Himalayan Balsam removed and Purple Loosestrife planted. The #RiverVer chalk stream is all the better for it. @chilternstreams.bsky.social

Citizen scientists needed. Help us learn more about local chalk streams and monitor the changes which are taking place. No experience needed. Full training is given and you will be supported by staff or members of local groups. More info -

We're looking forward to joining the @nationaltrust.org.uk 'Summer of Play' at Hughenden Manor. Wed 30th July - chalk stream themed crafts in the orchard Sunday 3rd Aug - family stream dipping sessions in Hughenden Stream. Details & booking https://bit.ly/45wPhFP With @notbourneyesterday.bsky.social

Extended Riverfly Training 14 October 2025 This free event is for tor those who are already confident in Riverfly monitoring and would like to learn how to identify more species. Book now!

Great opportunity to join the @chilternsnl.bsky.social team but you’ll have to be quick there are just 2 days left to apply!! www.chilterns.org.uk/jobs/adminis...

Why monitor Water Voles? 🔍Regular surveys help us: 📶Track population health 🔴Spot threats early (like invasive mink) 🍃Improve river habitats 🎯Measure the success of restoration projects This week the CCSP team have been out Water Vole monitoring in #Chesham on the #RiverChess.

Over the last week and a bit we have been shining a light on the Chess Valley Farmer Cluster, celebrating the successes of the last 2 years. Thank you to all those involved to date. We look forward to sharing more updates with you in future, as the Farmer Cluster delivers more Nature Recovery!

Butterfly Conservation- Big Butterfly Count Start tomorrow! The big butterfly count is a nationwide survey aimed at helping us assess the health of our environment. Anyone can get involved! Between Friday 18th July and Sunday 10th August  https://bigbutterflycount.butterfly-conservation.org/

Bespoke #owl & #kestrel boxes have been put up in areas where natural habitat for their prey species is being conserved & maintained. Owls & kestrels feed on rodents, insects & other small animals, reducing pest populations & maintain ecological balance. The boxes provide shelter & breeding sites.

Supplementary #bird feeding, provides a source of food for wild bird populations during the winter when food is scarce. This improves breeding success and supports bird populations while we are rebuilding natural habitat, farmers in the cluster have been feeding wild birds with specialist seed.