Male Beautiful Demoiselle

It's beena very hot day so a walk near water seemed a good idea.  There were a lot of first sightings of the year for us - male and female Beautiful Demoiselles , a Common Blue Butterfly and the first Ragged Robin that I've seen. The extra is of a Common Wave  dayflying moth. If my id is wrong, please correct me.

We saw reed bunting and heard reed warblers but they all evaded the camera.  I was watching the insects flying over the water and as I watched a mayfly, a demoiselle grabbed it and flew off. Sad for the mayfly, dinner for it's predator!