1. SEO/Birdlife Calle Melquiades Biencinto 34, 28053 Madrid Spain
2. RSPB Centre for Conservation Science, RSPB Cymru Castlebridge 3, Cowbridge Road East, Cardiff CF11 9AB U.K.
3. BirdLife International, The David Attenborough Building Pembroke Street Cambridge, CB2 3QZ U.K.