European colour-ring Birding and older colour-ring projects Dirk Raes's platform between the field-observer and the project-leader
European colour-ring birding Submit
Associação Portuguesa de Anilhadores de Aves Portugal
Paulo Tenreiro anilhagem científica de aves, Portugal
Ringed Birds Portugal Helder Cardoso, Portugal
Beringungszentrale Hiddensee, ringing station at Landesamt für Umwelt, Naturschutz und Geologie Mecklenburg-Vorpommern, Alemanha
Bird Ringing Centre Suécia
AFRING African Bird Ringing Scheme