The increase in number of birds wintering in Derbyshire is a relatively recent change, and can number several thousand at Carsington. Prior to the 1970's is was mainly a migrant with most records in the Autumn.
Almost all the birds are of the western European race Larus fuscus graellsii which breeds around much of the British coastline.
Lesser Black-backed Gull - adult graellsii |
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