Where's the water gone?

The pond at Magor Marsh was rather low on water today nonetheless there were still a few teal present, a fly by kingfisher, a Cetti's warbler and a reed bunting.

I took the liberty of having a look in one or two of the accessible nestboxes on the reserve. In one was this overwintering queen German wasp (Vespula germanica) note the diagnostic three dots on face.