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 29 Sep 2019 (10am – 4pm)

Celebrating 50 years of RSPB Groups at Rye Meads

A fun day for all ages RSPB Rye Meads Nature Reserve (SG2 8XZ ) to celebrate 50 years of RSPB groups. The South East Herts group will be joined by the Potters Bar & Barnet, North East London and North West London groups and will host a number of activities including a bird race for all ages with prizes for the winners and runners up of the three age groups (under 11, under 16 & over 16). Other activities include a bird call competition, a quiz on what you can see around the reserve, a Gold-themed quiz, cake and preserve sales, a raffle, RSPB pin badges and more.

Organised by: RSPB South East Herts Group

Sun 06 Oct 2019 (12 noon - 4.30pm)

Apple Day at Tewin

Apple Day at Tewin Pavillion ​(16 Upper Green Rd, Tewin, Welwyn AL6 0LX) is a celebration of all things apple. There will be apples from the HMWT's Tewin Orchard  reserve for sale along with apple juice, tea, coffee and cake. Experts will be on hand to identify varieties of apple and provide advice on fruit tree care. The Trust will also be organising guided walks around the orchard and traditional craft demonstrations. 

Organised by: Herts and Middlesex Wildlife Trust

Sat 09 Nov 2019 (2pm to 5.30pm)

HNHS Autumn Meeting and AGM

HNHS members and guests are warmly invited to the Autumn Meeting and Annual General Meeting , which will take place at the offices of Affinity Water, Tamblin Way, Hatfield AL10 9EZ.

Speaker programme t.b.a.. Presentations will be made to this year’s winners of the Society’s prestigious 1875 Awards and there will be the usual range of stalls to visit at tea time, including bargain book offers on HNHS books.

Admission to the conference is £5 on the door.  Attendance at the AGM only is free. Our thanks go to Affinity Water for kindly hosting this event. 

Organised by: Hertfordshire Natural History Society

Wed 27 Nov 2019 (8pm)

Gerald Salisbury Memorial Lecture

The annual lecture, organised jointly by Welwyn Natural History Society and HNHS, will take place at Welwyn Civic Centre, Civic Centre, Prospect Place, Welwyn, AL6 9EN

Speaker: Graham White, RSPB Head of Reserves Ecology 

Animal droppings : their identification and contribution to practical conservation (Title: tba)

Organised by: Hertfordshire Natural History Society

Sat 07 Dec 2019 (9.30am - 4pm)

Walk visiting Rye Meads & Amwell reserves

A full day walk at Rye Meads / and HMWT Amwell.  The walk will conclude by viewing the Amwell gull roost.

Meet in Rye Meads reserve car park at 9.30am. Postcode: SG12 8JS 


Organised by: RSPB South East Herts Group

Wed 18 Dec 2019 (10am)

Christmas walk from Batford Springs to Leasey Bridge

A walk along the Lea Valley from Batford Springs to Leasey Bridge and return. Followed by an optional lunch at a local pub.

Harpenden, meet by the bridge across the River Lea at Batford Springs .

Please tell Geoff Horn in advance if you wish to join the lunch (

Organised by: RSPB Harpenden Local Group