We promote the study and recording of wildlife in Hertfordshire and encourage a wider interest in natural history including the conservation of wildlife, habitats and geological features.

Our members share an interest in nature and observing and studying wildlife. We get real value from your observations by coordinating and compiling everyone’s records to build up a comprehensive picture of the state of wildlife in the county. This helps us understand how it is changing over time in response to the pressures of modern life and climate change.

Pseudococcyx posticana​Water Shrew at Heartwood Forest (© David Utting)

This autumn, the Hertfordshire Mammal, Amphibian and Reptile Atlas (MARA) team has has been monitoring small mammals at Heartwood Forest with exciting results. A Water Shrew, briefly detained in a Longworth trap before being weighed and released, was the first recorded there.

Less unexpected discoveries during the night and day-time survey included Bank Vole, Field Vole, Wood Mouse, Yellow-necked Mouse and Common Shrew.

 Bank Vole at Heartwood Forest (© David Utting)

Photographs of Hertfordshire wildlife can be emailed (in jpg format) to photogallery@hnhs.org. The pictures we receive are published in the HNHS photo galleries here, while others can be found in the Flora group and Bird Club websites. Note that we are currently seeking a volunteer willing to spend a few hours each month keeping the HNHS website photo galleries up to date. Contact if you might be interested.

All the latest natural history news can be found on our news page. The latest and past newsletters can be downloaded here.