| Tuesday 22nd August 2023 | ||
| A Sooty Tern flew past Pendeen, Cornwall, single Black Storks were at Snettisham, Norfolk and Brockenhurst, Hampshire, a Bonaparte's Gull was at Loch Bee, Western Isles, an Azorean Yellow-legged Gull was at The Gearagh, County Cork and a Greenish Warbler was at Tresta, Fetlar, Shetland.
Lingering rarities still present included the Red-footed Booby in Scilly, Forster's Tern in Dorset, Black-winged Pratincole in County Donegal, Long-billed Dowitcher in Norfolk, White-rumped Sandpiper in Northumberland, five Black-winged Stilts in both Lincolnshire and Yorkshire, Stejneger's Scoter and King Eider in Lothian, Bonaparte's Gull in Kent, Black-headed Wagtail in County Derry and single Greenish Warblers in Shetland and Northumberland. |
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| - Will Soar, RBA | ||