The first breeding Oystercatchers have arrived and start nesting

I am not yet at the White Sea myself, I am still preparing the questionnaires and other work that has to go in parallel, but as the staff of Kandalaksha Nature Reserve have already arrived at the islands they sent the news on the weather and late spring conditions, and also wrote that "the birds are already on the roof". This is a nice remark on the kind of "Adopted Family" of Oystercatchers that moved since 1998 when they bred nearby the houses to the roof of the research staff building. The reason is obvious - elsewhere on the main island there is almost total predation by Red Fox and Hooded Crow, and at the roof and in viccinity to humans - they are safe and already for at least four latest years manage to raise chicks successfully. In fact this year I hope to find at the islands some of their grown-up offsprings, which are individually ringed.
Research is research, but also for year I cannot get permit from the inhabitants of the house to set a trap and catch the breeding birds for individual ringing. Therefore everybody says "ours have arrived", and I am noting that "ours is not in fact confirmed".
Their neighbours, who were breeding something like 30 meters distance from the house, were not successful for years; last year at least I managed to ring one of the two birds. Hope this year also the pair with individually marked partner will arrive and be more practical in selecting the nesting place safer and closer to people.