This calendar has been compiled by the Hertfordshire Natural History Society (HNHS) on behalf of natural history organisations in Hertfordshire. The type of event is colour coded: Outdoor events, Indoor meetings.

Sun 04 Jun 2023 (10am)

Northaw Great Wood for summer wildlife

Park and meet in the Northaw Great Wood car park (TL282040) off the Ridgeway B157 at 10 am.

Organised by: British Naturalists Association, Herts Branch

Sat 01 Jul 2023 (10am)

Clothall Common, Baldock for summer wildlife

Turn off A507 past Tapps Garden Centre.  Park with care in Clothall Common housing estate and meet at TL 256338 on unofficial footpath leading off Wallington Road.

Organised by: British Naturalists Association, Herts Branch

Sat 08 Jul 2023 (10am - 4pm)

Wildfest 2023 at Cassiobury Park, Watford

A family day out in Watford with opportunities to explore wildlife in and around Cassiobury Park, and learn about local organisations working for wildlife (including HNHS / Herts Bird Club).

Organised by: Herts and Middlesex Wildlife Trust

Sun 30 Jul 2023 (10am)

Tring Park for lichens and flora

Park either in the Tring Park car park or on Hastoe Lane and meet at the car park entrance (SP 924109) at 10 am.

Organised by: British Naturalists Association, Herts Branch

Sat 09 Sep 2023 (10.30am - 4.40pm)

Conference in memory of Trevor James BEM

A full-day conference to remember the outstanding 'all-round' Hertfordshire naturalist Trevor James at Redbourn Parish Centre, AL3 7LR.

Organised by: Hertfordshire Natural History Society