Hosted by the Hertfordshire & Middlesex Wildlife Trust and the Chilterns Chalk Streams Project, Riverfly Day is a aimed at both practising riverfly monitors and anyone interested in finding out more about riverflies and their local freshwater environment.
Hear from a range of expert speakers on what riverfly monitoring is telling us about the health of our chalk streams. We will also be visiting the award-winning River Bulbourne restoration project and learn how citizen science is being used to evaluate its success.
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