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.

Tue 20 Jan 2026 (10:30)

Winter-spring Bryophyte Meeting 1/4

Meetings usually start at 10.30am and continue until mid-afternoon. Please contact Agneta Burton (m.a.s.burton@btinternet.com) for further details and if you wish to join the mailing list for the group. 

Organised by: Other

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, will give a talk prepared with fellow-expert  Prof Richard Bateman.

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

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

Tue 24 Feb 2026 (10:30)

Winter-spring Bryophyte Meeting 2/4

Meetings usually start at 10.30am and continue until mid-afternoon. Please contact Agneta Burton (m.a.s.burton@btinternet.com) for further details and if you wish to join the mailing list for the group.

Organised by: Other

Sat 07 Mar 2026 (10am)

Widford

Park and meet in the layby on the north side of the B1004 approx. 200m west of Widford church (St John the Baptist). TL 411 158, W3W rises.sums.cross.

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

Wed 11 Mar 2026 (8pm)

Owls

 Learn more from speaker Mike Toms about these fascinating and intelligent creatures.

Organised by: RSPB Watford Local Group