Recording the ever-changing flora and fauna of Yorkshire for over 160 years.
We are an association of amateur and professional naturalists covering a wide range of aspects of natural history.
We study the 'old' county of Yorkshire, as individuals and through our many Affiliated Societies, many of which are local naturalists' groups. The YNU organises field meetings throughout the county, online presentations and discussion sessions as well as frequent conferences. Visit our Events Page to find out more about YNU activities and how you can join in - everyone is welcome!
The YNU publishes three issues of The Naturalist, a County Bird Report and a Butterfly and Moths Report annually (in association with the Yorkshire Branch of Butterfly Conservation). These are all free to members. The YNU also publishes books on natural history subjects from time to time.
The five vice-counties which form the YNU's recording area are shown below.

To download a more detailed copy of the map - Click Here
EVENTS AND FIELD MEETINGS
- CONFERENCE (material from recent conferences, including some of the speakers' presentations, are available for download from here).
- ANNUAL GENERAL MEETING.
- PUBLIC EVENTS We regularly support bioblitzes and other public events run by other natural history organisations in Yorkshire. Click here to download a useful guide to running a Bioblitz in Yorkshire.
- VICE-COUNTY EXCURSIONS. Five field meetings per year at which members of all the different sections get together to record wildlife at a particular site in each of Yorkshire's five vice county. A database of all YNU Vice-County excursions is available here
- FIELD MEETINGS organised by each Section to record wildlife in a particular species group or a particular habitat.
- FIELD SKILLS INTRODUCTION. Every year we run an introduction to field skills for MSc students at Leeds University.
All field meetings are free and non-members are very welcome to attend.
YNU GRANT SCHEME
The YNU offers grants on a biannual basis to institutions or individuals who wish to undertake work that furthers the aims of the YNU. For details, download the YNU Grant Guidelines document here and a YNU Grant Application Form here. Alternatively, contact the Membership Secretary at c/o NEYEDC, Unit 7, Hassacarr Close, Dunnington, York YO19 5SN (This email address is being protected from spambots. You need JavaScript enabled to view it.).