British Trust for Conservation Volunteers BTCV is the UK's leading charity working with people to bring about positive environmental change. www.btcv.org
Butterfly Conservation Works to safeguard the future of butterflies and moths. www.butterfly-conservation.org.uk
English Nature Government agency that champions the conservation of wildlife and natural features throughout England. www.english-nature.org.uk
Farming and Wildlife Advisory Group Provide farmers, landowners and clients with opportunity for environmental gain through cost effective, quality solutions. www.fwag.org.uk
Forestry Commission Provides news and information about the forest environment, recreation, timber, planting and managing woodlands. www.forestry.gov.uk
Hertfordshire & Middlesex Wildlife Trust Protects wildlife for the future. One of 46 Wildlife Trusts throughout the UK within the Wildlife Trusts Partnership. www.wildlifetrust.org.uk/herts
Royal Society for the Protection of Birds The RSPB works for a healthy environment rich in birds and wildlife. www.rspb.org.uk
The Wildlife Trusts Network of 47 local Wildlife Trusts and junior branch, Wildlife Watch, working together to protect wildlife in towns and the countryside. www.wildlifetrusts.org
The Woodland Trust The Woodland Trust is the UK's leading conservation charity dedicated to the protection of our native woodland heritage. www.woodland-trust.org.uk
World Wildlife Fund Involved in the conservation of wildlife, working directly to protect species. www.wwf.org.uk