| Monday 1st December 2025 | ||
| The highlight of the day was the discovery of a Siberian Rubythroat in Shetland at Scousburgh, Mainland, Shetland. Elsewhere in Britain the Pacific Diver returned to Mousehole, Cornwall.
In Ireland the Harlequin Duck and two Richardson's Cackling Geese remained in County Donegal, as did the Double-crested Cormorant in County Leitrim, two Northern Harriers were still together in County Wexford, Pacific Diver, Black Duck, Cackling Goose, and Azorean Yellow-legged Gull all in County Mayo, Semipalmated Sandpiper still in County Clare, and Lesser Yellowlegs still in County Antrim. |
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| - Chris Batty, RBA | ||