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Black-headed Gull, Brancaster Staithe (Norfolk, UK), 8th February 2011
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Black-headed Gull, Brancaster Staithe (Norfolk, UK), 9th December 2010
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Black-headed Gull, Brancaster Staithe (Norfolk, UK), 4th March 2005
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first-summer Black-headed Gull, Brancaster Staithe (Norfolk, UK), 5th July 2006
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juvenile Black-headed Gulls, Dunwich (Suffolk, UK), 24th July 2004
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juvenile Black-headed Gull, Houghton (Norfolk, UK), 31st July 2008
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juvenile Black-headed Gull, Houghton (Norfolk, UK), 28th July 2008
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Black-headed Gulls, outlet near Muscat Airport (Muscat, Oman), 18th November 2017
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Black-headed Gull, Great Ryburgh (Norfolk, UK), 26th May 2017
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Black-headed Gull, Great Ryburgh (Norfolk, UK), 21st June 2017
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Black-headed Gulls, Great Ryburgh (Norfolk, UK), 15th April 2017
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juvenile Black-headed Gull, Great Ryburgh (Norfolk, UK), 11th July 2017
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Black-headed Gull, Brancaster Staithe (Norfolk, UK), 2nd May 2006
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first-summer Black-headed Gull, Brancaster Staithe (Norfolk, UK), 3rd July 2008
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Black-headed Gull, Brancaster Staithe (Norfolk, UK), 4th February 2008
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Black-headed Gull, Brancaster Staithe (Norfolk, UK), 3rd October 2006
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Black-headed Gulls, Brancaster Staithe (Norfolk, UK), 7th January 2014
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Black-headed Gulls, Brancaster Staithe (Norfolk, UK), 20th March 2014
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Black-headed Gull, Brancaster Staithe (Norfolk, UK), 20th March 2014
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Black-headed Gull, Strumpshaw Fen (Norfolk, UK), 7th March 2015
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Black-headed Gulls, Brancaster Staithe (Norfolk, UK), 7th March 2007
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Black-headed Gull, Brancaster Staithe (Norfolk, UK), 22nd April 2008
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Black-headed Gull, Brancaster Staithe (Norfolk, UK), 23rd February 2004
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Black-headed Gull, Brancaster Staithe (Norfolk, UK), 8th December 2005
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first-summer and adult Black-headed Gulls, Brancaster Staithe (Norfolk, UK), 8th May 2006
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Black-headed Gulls, Brancaster Staithe (Norfolk, UK), 10th October 2007
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Black-headed Gull, Brancaster Staithe (Norfolk, UK), 12th October 2007
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Black-headed Gull, Brancaster Staithe (Norfolk, UK), 10th October 2007
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Black-headed Gull, Brancaster Staithe (Norfolk, UK), 13th June 2008
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Black-headed Gull, Brancaster Staithe (Norfolk, UK), 15th February 2006
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Black-headed Gulls, Brancaster Staithe (Norfolk, UK), 14th July 2004
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Black-headed Gull, Brancaster Staithe (Norfolk, UK), 15th March 2006
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Black-headed Gull, Brancaster Staithe (Norfolk, UK), 15th September 2004
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Black-headed Gulls, Swanton Morley (Norfolk, UK), 7th December 2008
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Black-headed Gull, Brancaster Staithe (Norfolk, UK), 23rd March 2005
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Black-headed Gull, Brancaster Staithe (Norfolk, UK), 26th January 2012
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Black-headed Gulls, Brancaster Staithe (Norfolk, UK), 23rd November 2007
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first-winter Black-headed Gull, Salthouse (Norfolk, UK), 30th April 2011
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Black-headed Gull, Sandringham (Norfolk, UK), 23rd June 2008
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Black-headed Gull, Sheringham (Norfolk, UK), 27th September 2007
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Black-headed Gull, Sheringham (Norfolk, UK), 23rd March 1999
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Black-headed Gull, Titchwell (Norfolk, UK), 2nd April 2004
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Black-headed Gulls (and Common Gull), Brancaster Staithe (Norfolk, UK), 28th February 2006
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first-winter Black-headed Gull, Salthouse (Norfolk, UK), 7th December 2003
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Black-headed Gull, Thornham (Norfolk, UK), 12th June 2007
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first-winter Black-headed Gull, Salthouse (Norfolk, UK), 24th March 1999
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Black-headed Gull, Salthouse (Norfolk, UK), 29th March 2001
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Black-headed Gull, Brancaster Staithe (Norfolk, UK), 24th August 2006
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first-year Black-headed Gull, Ebro Delta (Cataluña, Spain), 21st May 2013
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Black-headed Gull, Brancaster Staithe (Norfolk, UK), 24th October 2008
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Black-headed Gull, Chapel Point (Lincolnshire, UK), 23rd August 2008
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first-winter Black-headed Gull, Salthouse (Norfolk, UK), 4th September 2009
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Black-headed Gulls, Cley (Norfolk, UK), 14th April 2007
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first-summer Black-headed Gulls, Brancaster Staithe (Norfolk, UK), 2nd May 2006
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first-winter Black-headed Gull, Cotswold Water Park (Wiltshire, UK), 15th October 2000
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