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Putative Hybrid from a Lesser Crested Tern and a Sandwitch Tern (Sterna bengalensis x St. sandvicensis). The bird was seen at Tarragona Harbour first by Albert Cama and Joan Ferré on the 15th of August 2007, then next day only by Albert Cama and on the 18th by Albert Cama and Pere Josa. The pictures were taken the last day.
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Posible híbrido entre Charran bengalí y Charran patinegro. Este ave fue observada en el Puerto de Tarragona por Albert Cama, Joan Ferré y Pere Josa del 15 al 18 de Agosto de 2007
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Possible híbrid entre Xatrac bengalí i Xatrac bec-llarg. Aquest ocell va ser observat al Port de Tarragona per l'Albert Cama, el Joan Ferré i el Pere Josa del 15 al 18 d'Agost del 2007.