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
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.
Website Upgrade
The HNHS and Bird Club management committees are working together to redevelop and upgrade the HNHS and Bird Club websites. The project is currently in the early planning stages and, as part of this, we would like users of the websites to provide feedback on the websites to help us understand what needs improving via two short surveys linked below. All feedback received will be collated and reviewed during the planning process.
Please provide feedback on the HNHS website here.
Please provide feedback on the Bird Club website here.
How to help Swifts – the 2026 Herts Bird Conference
The 2026 Hertfordshire Bird Conference attracted a full house of HNHS/Bird Club members and friends on Saturday 7 March to hear fascinating talks on Swift conservation, birds in urban greenspaces and the 'journey' of a bird record submitted through the Bird Club website.
Videos of all the main presentations can be found on the HNHS YouTube channel
Swifts are our fastest bird in level flight and famously only land when nesting. They otherwise feed, drink, sleep and mate on the wing.