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.

Stuart Warrington, editor of the Hertfordshire Naturalist, is looking for for contributions to the 2026 edition.
These can be articles or observations or photos about the wildlife, habitats or geology of the county. We are happy to look at a range of content and styles, so please do consider making a contribution to our long-running journal. 

We are pleased to announce that the popular HNHS exhibition 'Wildlife - for the Record' will continue for an extra fortnight at North Hertfordshire Museum, Hitchin. The final day will now be Sunday 1 March.

The exhibition is the concluding event in celebrations to mark the Society's 150th anniversary. It features species and habitats that are special to the north of the county, and wildlife exhibits from the museum's store that are not normally on display.