In the early part of 1999, we discovered a small colony of large white-headed gulls Larus at a gravel-pit near Jankowice, on the banks of the Vistula river in southern Poland, about 50 km from Krakow. On 28th February, we observed six pairs of gulls there which showed characteristics of the nominate race of Yellow-legged Gull L. cachinnans cachinnans (`Caspian Gull', hereafter referred to simply as


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