Welwyn Hatfield Borough Council
Natural England
Forestry Commission
The Conservation Volunteers
Countryside Management Service
Herts & Middlesex Wildlife Trust
Hertfordshire Natural History Society
Hertfordshire Bird Club
Friends of Northaw Great Wood
Digswell Lake Society
Welwyn Garden City Society
Welwyn Hatfield Times
The RSPB
Friends of the River Mimram
Welwyn Planning & Amenity Group
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