A quick response as ever from Jeroen with regards to the Sanderling sighting:
Thank you very much Ian,
This is already useful, just to see whether adults will arrive in Europe earlier than in other years, because they have not bred.
Also in "normal years" the first juveniles can not be expected in Europe before mid August, so for a useful comparison of the reproductive success of Sanderlings this year with other years we will need such counts from mid August until mid November (after mid November, adults and juveniles are difficult to distinguish). Thank you very much for giving publicity to my project on the local website, that is very much appreciated and I truly hope for many participants this and in other years!
best wishes,
Jeroen