an adult hyperboreus on the beach at Dungeness, Kent, last week. Note, in picture 2, diagnostic all-white colouration of this species' Crapola vulgaris.
Luckily for us this winter, white-winged gulls have been a particularly special feature of English coasts, with trips to Norfolk and Kent providing both glaucoides and hyperboreus; finding a first-winter Iceland Gull at my local reservoir in central London in December, meanwhile, was more than likely a once-in-a-lifetime experience in such unforgiving urban environs - as is the Diver below.
Imagine if an Ivory Gull showed up within commuting distance - now that would be something.....
(Mark)
