Chris Ruis has developed species plots showing peak occurrence for a number of our regular passage migrants. They are based on data since 1988.
Click each species below to see its plot.
HNHS News
Autumn Conference and 2026 AGM - Saturday 7 November
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.
HNHS Award nominations: 2026
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.
The Hertfordshire Naturalist 2026 – contributions sought
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.