He has seen 136 birds and been able to read some collars and even managed to identify some juveniles.
Our pair Tags 27/29 appear to have raised a brood of two again this year but only a few other juveniles appear to be present.
His blog site is worth visiting to update yourself with the 'action' and photographs, (oslobirder.blogspot.co.uk)
I attach below a photograph taken recently in Norway of our birds courtesy of Simon.