I've recently discovered a Pied Wagtail roost site in the centre of Manchester. I was aware of there being some around previously, but not where this one is situated. It's on a particularly busy road with restaurants and offices. In the mornings on my way to work I could here them but never see them. Then one morning just as the sun was coming up I counted 35 leaving the roost site. It was quite a spectacle, and noise, as they are not the quietest of birds. There may have been more, and judging by the mess on the pavement I'm sure there are. A count of around 50 has been seen since.
I managed to take a some close-up shots of one at Elton reservoir last week.