Greater Black-backed Gull - Larus marinus
Family - Laridae
January 2014 Walthamstow reservoirs
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March 2025 Llanfairfechan North Wales
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April 2016 Walthamstow reservoirs
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October 2016 Severn Estuary
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November 2014 North Wales coast
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March 2025 Llanfairfechan North Wales
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March 2025 Llanfairfechan North Wales
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