observed at Newport Wetlands reserve, nest to one of the lagoons.
No interactions present.
Many thanks everyone. I think I need a new I'd guide!!!!
Stubbs and Falk, British Hoverflies, is the bible for hoverflies; but, at some point, a Wildguide to hoverflies (a photoguide) is going to come out (already well overdue) and should be a great addition to hoverfly ID guides.
My Flickr photos...
Lat/Lng: 51.5459, -2.9613
OS grid ref: ST334834