Look who's drinking from our pond!

I was sitting with my Mother in her garden this sunny afternoon, when we noticed a steady stream  of spectacular insects visiting her pond, to drink. On closer inspection I realised they were European Hornets (Vespa crabro), and fortunately  not the Asiatic species. There are big oak and ash trees in her garden and around, and I guess they  have a nest  in one nearby, as they all came and returned in the  same  direction. They are nearly 30mm long, so really very striking! 
I blipped a Hover Fly last month which masquerades as a hornet, but which I don't think is nearly as  beautiful as the real thing.