I couldn't get over until today, so this evening I drive across with Lydia and found the bird feeding on the small flash, south of the main lake. It never came very close, staying about 30m away at all times, but I still managed some decent record shots, one of which I cropped. Unfortunately, no flight shots this time around.
This record is only the 7th of this species in Derbyshire, and the first since August 1997. For me this is not only a "year tick", but it also my first ever Derbyshire record.
Whilst there, I also added Grasshopper Warbler to the year list, with 1 reeling bird, and about 20 Swifts.
Year List update:
157 - Grasshopper Warbler
158 - Sabine's Gull