Sunday 10th December 2017
	A Black Guillemot which has spent the last four days at Cut End, Lincolnshire was confirmed as being of the form mandtii today, the first record of this Arctic subspecies for Britain. New discoveries today included a Bonaparte's Gull at Dargan Bay, County Antrim and single White-billed Divers at Peterhead, Aberdeenshire and St Margaret's Hope, Orkney. Lingerers included just the Lesser Scaup in Cornwall and King Eider in Shetland. Scarcity highlights included a Barred Warbler, a Lapland Bunting, two Waxwings, nine Shorelarks, a Temminck's Stint, a Grey Phalarope, a Surf Scoter, two American Wigeon, three Ring-necked Ducks, four Green-winged Teals, a Tundra Bean Goose, three Pomarine Skuas, 29 Little Auks, a Ring-billed Gull, six Glaucous Gulls and ten Iceland Gulls.
-  Will Soar, RBA