This is an annual, on-going survey started in 1989 to monitor species numbers. The surveys of calling males in spring are done over two days in the early morning. Ref – Stiperstones /90
Project details
| Start date | 1989-03-01 |
|---|---|
| End date | On-going |
Closing statement
This is an unpublished report, which has been catalogued as part of the NNR Record Project. It can be made available on request.