Yesterday I was lucky enough to spot a flock of 12+ waxwings as I was driving through Dumbarton, close to the River Clyde.
Waxwings tend to congregate in a medium sized tree and then fly down, a few at a time, to feed on berries from low bushes nearby. At a distance they look a bit like starlings, but are paler and have a shorter beak, so they appear to have a spike out of the back of their heads (crest) whereas starlings have a spike at the front (beak).
The best places to look for them are within a few miles of the Clyde, anywhere from central Glasgow to Arran and beyond. If you see any, please note the date, time, location and number of birds present, and let me know.