Never mind one, were eventually admiring two males!! Here's the first one....
Lots of wind motion but you can just make out the two-tone wing spot....
The second male, showing different marks on segment 9
Close up of the blue green eyes, side of thorax and antehumeral stripes :-)
Just in case you think finding these is early and we never located a female. Blue-tailed Damselfly is a formidable confusion species with an variety of forms. Here's a few (record) shots.....
Adult male Blue-tailed Damselfly (Ischnura elegans) - easy to pick out! Compare with the above pumilio :-)
Then some of the female forms, starting with the immature rufescens....
Mature female rufescens-obsoleta form....
Mature female infuscans form....
Here's some Azure Damselflies to finish off (masses of them!) - single male plus a pair....