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Keywords from Image Description:
Sternidae naumann. Sterna sandvicensis up Gelochelidon nilotica syn Sterna nilotica middle Onychoprion fuscatus down Source biologie unihamburg de htm aus NAUMANN NATURGESCHICHTE DER VGEL MITTELEUROPAS Band XI Tafel Gera digitale Bearbeitung Peter Sengbusch bonline botanik unihamburg de NAUMANN Thalasseus sandvicensis illustrations