1. RSPB Centre for Conservation Science Royal Society for the Protection of Birds Sandy Bedfordshire UK
2. Bulgarian Society for Protection of Birds/BirdLife Bulgaria Sofia Bulgaria
3. Hellenic Ornithological Society Athens Greece
4. Department of Biological Applications and Technologies University of Ioannina Ioannina Greece
5. WWF Greece Athens Greece
6. Macedonian Ecological Society Skopje former Yugoslav Republic of Macedonia