The last blog reported the appearance of 2013 Perthshire born Blue YS on Nest 1 on Saturday. Here is another image of him.
Just two days later his sister landed on the same nest.
The siblings are from a nest near Murthly. Blue YU was seen in Montgomeryshire last August.
Kielder Water is a large expanse of water relatively central to the migration route for many Scottish ospreys. Each year we see an increase in the number of migrants taking a look at a nest site. Nevertheless for at least two of three siblings to survive to three years old is well above average in itself and to see both within 2 days of each other in exactly the same spot in their journey north is truly exceptional.