| Thursday 18th December 2025 | ||
| The new rarity today was a Dusky Warbler in Cornwall at Boscathnoe Reservoir.
Lingering rarities included a Black Scoter in Highland, King Eider in Highland, Red-breasted Goose in Essex, Richardson's Cackling Goose in Argyll, Harlequin Duck in County Donegal, Bufflehead in County Kerry, Dusky Warbler in County Waterford, Ferruginous Duck in Lincolnshire, Long-billed Dowitcher in Angus, and Lesser Scaups in Cornwall (2) and Surrey. Late news included a Red-breasted Goose in Argyll, and Lesser Scaup in Essex. |
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| - Ben Clark, RBA | ||