Bonaparte's Gull Chroicocephalus philadelphia (formerly Larus philadelphia)

a rare visitor to the UK and to Norfolk.

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Bonaparte's Gulls, Campbell River, Vancouver Island (British Columbia, Canada), 12th September 2006

 

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Bonaparte's Gulls, Oyster Bay Shoreline Park (British Columbia, Canada), 12th September 2006

 

 

first-winter Bonaparte's Gull (with Black-headed Gulls), Teign (Devon, UK), 28th March 2000