- Royal Society for the Protection of Birds – the national conservation society.
- British Trust for Ornithology – the scientific research trust
- Surfbirds – a general site, for birders, by birders.
- Birdguides – current rarities, shopping, and lots more.
- The Wildfowl & Wetlands Trust – for the London Wetland Centre at Barnes
- Fatbirder – a general site, for birders, by birders.
- Wildlife Aid Foundation – wildlife rescue centre in Leatherhead.
- New Forest Explorers – Birding & Walking sites in The New Forest
- The Army Ornithological Society – the organisation for military birders