© Josh Jones
This bird is the third first-winter Caspian Gull this November in the Peterborough area. Although similar to the bird from 4th, the upperparts are marked differently, and the underparts and neck are streaked more heavily. The bill pattern is also slightly different. Interestingly, just one of the three birds so far has shown a dark bill which is perhaps more typical of the species at this age, especially at this time of year.
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