A black-headed gull (scientific name Chroicocephalus ridibundus) rests on the Thames embankment opposite the Houses of Parliament on a cold winters day. The black-headed gull is commonly found on habitats such as farmland, wetland and coastal habitats throughout the UK. It is estimated there are about 140,000 breeding pairs in the UK and about 2.2 million wintering birds each year.


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