British Trust for OrnithologyW
British Trust for Ornithology
Cornwall Birdwatching and Preservation SocietyW
Cornwall Birdwatching and Preservation Society
Glamorgan Bird ClubW
Glamorgan Bird Club
Gower Ornithological SocietyW
Gower Ornithological Society
Royal Society for the Protection of BirdsW
Royal Society for the Protection of Birds
Scottish Ornithologists' ClubW
Scottish Ornithologists' Club
Wildfowl & Wetlands TrustW
Wildfowl & Wetlands Trust