Very interesting to get this news from a fieldworker in Sweden. Thanks Don for your observations.
Today Tag39 and others? have moved back south. Map below. Reasons may be that they have insufficient food or decided to return to Pandrup in Denmark. Watch this space for future updates.
We have been unsuccessful in finding out if Tag20 in Denmark has others with him as it turns out to be an area that is well used by migrating geese and sounds like the Slamannan Plateau with undulating fields with plenty of contours where birds can hide from prying eyes.
