This page is for news and information about Hertfordshire's Mammals. Please submit your records on the records submission page. If you are interested in Bats contact the Herts and Middlesex Bat Group through their website.

HNHS formally objects to Tyttenhanger housing plan

Hertfordshire Natural History Society and the Herts Bird Club have formally objected to proposals for a 6,000 home village to be built on a site used by nesting Tree Sparrows and other rare and protected wildlife.

The 'Bowmans Cross' development included by Hertsmere Borough Council in its draft Local Plan threatens the last known colony of Tree Sparrows in Southeast England and more than a dozen other bird species on the adjacent Tyttenhanger gravel pits area that have been nationally 'Red-listed' due to conservation concerns. Other protected species recorded in and around the site include Brown Hare and Hedgehog, Common Toad, Great-crested Newt and the Small Heath and White-letter Hairstreak butterflies.

Annual meeting hears how 'Ratty' returned to a riverbank in Herts

A Hertfordshire comeback story of Water Voles – famous to generations as ‘Ratty’ in the children’s novel Wind in the Willows – was told at the HNHS annual meeting, held online on Saturday 27 November.

Josh Kalms, People and Wildlife Officer with the Herts and Middlesex Wildlife Trust, described the careful process by which 150 of the bank and stream dwelling creatures were reintroduced to the River Ver this summer.