- The Malvern Hills Area of Outstanding Natural Beauty (AONB)
- Worcestershire Wildlife Trust
- Herefordshire Nature Trust
- Worcestershire Biological Records Centre and Worcestershire Recorders
- Malvern Hills Conservators
- Royal Forestry Society
- Arboricultural Association.
- Forestry Commission
- Protected Trees - A Guide to Tree Preservation Procedures
If you cannot find the information you need, please contact Chris Lewis-Farley:
Telephone: 01684 862407.