From an earlier statement:

Asian Hornet update. Following the recent discovery of two Asian Hornet (Vespa velutina) workers near Tetbury in Gloucestershire, Bee Inspectors from the National Bee Unit have visited over 100 sites in the local area. Asian Hornets were found at six locations within 500m of the original sighting.

Impressive scale of search but it does make me wonder ....

- flights of Asian hornet workers seem rather short if the six locations were within 500m of the original sighting
- only one site of six with hunting hornets was reported, the others found by inspectors

This all seems a bit needle in a haystack. There must be a chance that there are more out there and this nest wasn't established by the first queen to make it to these shores. If the radius affected is short and most folk with bee hives don't notice or report the issue then it would be easy for there to be others and we're just seeing the colony of one daughter or grand-daughter of the first one.

Also interested to hear whether there was evidence either way about new queens produced by this colony. It looks a fair size.