With the continuing unhelpful wind direction I didn't spend much time birding but I saw the Bonaparte's Gull make a couple of visits to Norwick beach and there were 2 Common Swifts feeding low over Lamba Ness.
Juvenile Common Swifts at Lamba Ness
Having read about the intriguing Swift on North Ronaldsay in recent days I was keen to take a careful look at the duo encountered feeding low over the cotton grass but they were showing the expected suite of characters of Common Swift.