Audouin's Gull Larus audouinii (or Ichthyaetus audouinii )

An extremely rare vagrant to the UK from the Mediterranean, appearing in NW Europe more frequently in recent years.

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Audouin's Gulls, Capo Murro di Porco (Sicily, Italy), 24th April 2012 - two birds, one flying left and the other right

 

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Audouin's Gulls, Ebro Delta (Cataluña, Spain), 20th May 2013

 

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Audouin's Gulls, Ebro Delta (Cataluña, Spain), 21st May 2013

 

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Audouin's Gulls, Porto Torres (Sardinia, Italy), 18th April 2008