It's a long journey for such a small bird and it made this journey also quite fast. Rybachyi ringing station lies 995 kilometres south from Tankar. So almost 1000 kilometres in seven days!
As said in the letter, have to mention that they also added a new Russian ring for this bird. I wonder why?
Goldcrest. This photo is also taken in Tankar but it's not
the bird mentioned here.
