On the morning of n t h May 1966 we discovered an unusual gull at rest in one of the gravel diggings at Lade Pits neat Dungeness, Kent. We had initially passed it over as another Black-headed Gull Lams ridibundus, but a closer look revealed characteristics not associated with that species. Detailed notes were made during some five minutes of observation. We then disturbed the bird and in flight it...

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