Thanks to AL for the prompt text, ten minutes later I was watching a nice drake American Wigeon on Loch of Harray. It was at a bit of range but interestingly straight-necked and floating higher in the water. I'll have another look tomorrow to see if I can pick it out again with a bit more time to look.
A family trip to South Ronaldsay produced a Swallow, a juvenile Lesser Black-backed Gull and really good numbers of Eider and Gannets. The Gannets must have got into a shoal of fish as there were near enough 1400 in the flock, about five miles off I reckonned.
At home the Tree Sparrow was on the feeders and a couple of Reed Buntings dropped in briefly but I had little time to look.