Members and friends are warmly invited to join us for the 2026 Autumn Meeting and Annual General Meeting on Saturday 7 November at the offices of Affinity Water, Tamblin Way, Hatfield, AL10 9EZ (2-5.30pm).

The featured speakers this year are Martin Ketcher, voluntary warden of the Purwell Nine Springs nature reserve in Hitchin for 46 years and Wendy Morrison, Director of the Chilterns Heritage & Archaeology Partnership. Winners of the annual HNHS awards will be announced.

Members are invited to submit nominations for the HNHS 2026 Awards, which will be presented at the Autumn Conference on Saturday 7 November.

Our two annual categories are the Trevor James Award for an outstanding Hertfordshire Naturalist and the 1875 Award for an outstanding contribution to natural history in Hertfordshire. Further information – including information about past winners – can be found on this website, together with a one page nomination form that covers the main criteria.

Appearances in Britain of the beautiful migrant Clouded Yellow butterfly are unpredictable, although arrivals from the Mediterranean usually coincide with hot weather. Amid continuing drought, 2026 looks like being a particularly good year for them in Hertfordshire.

Photographer Ashley Cox found five flying in the eastern meadows of Heartwood on 30 July and was able to obtain impressive images of a female and male in flight.