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 Jan 2026 (10am)
Hatfield, for an early new year plant hunt
Joint meeting with the Herts Flora Group.
Park at the back of the University of Hertfordshire car park E (TL 2134 0768). Follow the signs towards the University from Roehyde Way, and then follow the signs to Car Park E from College Lane.
Organised by: British Naturalists Association, Herts Branch
Sun 04 Jan 2026 (Email for info)
Lee Valley for New Year birds (Fisher's Green (Essex) and Amwell)
January 4 Shared transport trip to Fishers Green and Amwell, Lee Valley, Herts
Organised by: RSPB Watford Local Group
Fri 09 Jan 2026 (7.30pm)
Hertfordshire’s Dragonflies in a Changing Climate
Talk by Steve Brooks, co-author of one of the standard field guides to UK dragonflies.
Organised by Hitchin and Letchworth RSPB Group at The Settlement, Letchworth SG6 4UB,
Organised by: Other
Mon 12 Jan 2026 (9.30am)
New Year bird walk: location tba
Local Walk: A mystery walk. Venue to be decided approximately one week before the date.
Organised by: RSPB South East Herts Group
Thu 22 Jan 2026 (8pm)
Gerald Salisbury Memorial Lecture – 'The Wild Orchids of Hertfordshire'
Lecturer: Dr Ian Denholm, co-county flora recorder for Hertfordshire and Botanical Society of Britain and Ireland co-referee for orchids.
Organised by: Hertfordshire Natural History Society
Sat 24 Jan 2026 (2pm)
British Naturalists Association Herts branch AGM
Digswell Village Church at the bottom of Warren Way, Digswell AL6 0DH (TL244 153). Follow the path around the left hand side of the hall to find the door to the church.
Organised by: British Naturalists Association, Herts Branch
Sat 07 Feb 2026 (10am)
Bayfordbury Pinetum
Joint meeting with the Herts Flora Group.
Meet in the car park at the University of Hertfordshire Bayfordbury Campus. TL31431 10402, W3W tuned.fast.stack. Access to the site is from the B158 near the junction with St Mary’s Lane (TL30941 10559, W3W paint.remedy.author). NB there is a one-way system on site.
Organised by: British Naturalists Association, Herts Branch
Sun 15 Feb 2026 (email for info)
Tring reservoirs
Shared transport field trip.
Organised by: RSPB Watford Local Group
Sat 21 Feb 2026 (10am)
Weston for general wildlife
Park in the Weston Church car park at the end of Church Lane. TL 266 300, W3W crows.dumps.skirting.
Organised by: British Naturalists Association, Herts Branch
Sat 07 Mar 2026 (2pm to 5:30pm)
Hertfordshire Bird Conference 2026
The 2026 Hertfordshire Bird Conference will take place from 2pm to 5:30pm on Saturday, 7 March 2026 at Affinity Water, Tamblin Way, Hatfield, AL10 9EZ. Details tba.
Organised by: Hertfordshire Natural History Society
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