Stock Photo: Black-headed Gull (Larus ridibundus) adults, winter plumage, in flight, chasing gull with dead fish picked from lake, Derbyshire, England, march

Stock Photo: 4421-6260 Black-headed Gull (Larus ridibundus) adults, winter plumage, in flight, chasing gull with dead fish picked from lake, Derbyshire, England, march